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Implement inflateReset() function

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Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
This commit is contained in:
Dmitry Eremin-Solenikov
2018-12-18 14:26:37 +03:00
parent 336fca3bd4
commit ae423e65b4
2 changed files with 31 additions and 1 deletions
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26
miniz.c
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@@ -397,6 +397,32 @@ int mz_inflateInit(mz_streamp pStream)
return mz_inflateInit2(pStream, MZ_DEFAULT_WINDOW_BITS); return mz_inflateInit2(pStream, MZ_DEFAULT_WINDOW_BITS);
} }
int mz_inflateReset(mz_streamp pStream)
{
inflate_state *pDecomp;
if (!pStream)
return MZ_STREAM_ERROR;
pStream->data_type = 0;
pStream->adler = 0;
pStream->msg = NULL;
pStream->total_in = 0;
pStream->total_out = 0;
pStream->reserved = 0;
pDecomp = (inflate_state *)pStream->state;
tinfl_init(&pDecomp->m_decomp);
pDecomp->m_dict_ofs = 0;
pDecomp->m_dict_avail = 0;
pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT;
pDecomp->m_first_call = 1;
pDecomp->m_has_flushed = 0;
/* pDecomp->m_window_bits = window_bits */;
return MZ_OK;
}
int mz_inflate(mz_streamp pStream, int flush) int mz_inflate(mz_streamp pStream, int flush)
{ {
inflate_state *pState; inflate_state *pState;

6
miniz.h
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@@ -24,7 +24,7 @@
zlib replacement in many apps: zlib replacement in many apps:
The z_stream struct, optional memory allocation callbacks The z_stream struct, optional memory allocation callbacks
deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound
inflateInit/inflateInit2/inflate/inflateEnd inflateInit/inflateInit2/inflate/inflateReset/inflateEnd
compress, compress2, compressBound, uncompress compress, compress2, compressBound, uncompress
CRC-32, Adler-32 - Using modern, minimal code size, CPU cache friendly routines. CRC-32, Adler-32 - Using modern, minimal code size, CPU cache friendly routines.
Supports raw deflate streams or standard zlib streams with adler-32 checking. Supports raw deflate streams or standard zlib streams with adler-32 checking.
@@ -362,6 +362,9 @@ int mz_inflateInit(mz_streamp pStream);
/* window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate). */ /* window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate). */
int mz_inflateInit2(mz_streamp pStream, int window_bits); int mz_inflateInit2(mz_streamp pStream, int window_bits);
/* Quickly resets a compressor without having to reallocate anything. Same as calling mz_inflateEnd() followed by mz_inflateInit()/mz_inflateInit2(). */
int mz_inflateReset(mz_streamp pStream);
/* Decompresses the input stream to the output, consuming only as much of the input as needed, and writing as much to the output as possible. */ /* Decompresses the input stream to the output, consuming only as much of the input as needed, and writing as much to the output as possible. */
/* Parameters: */ /* Parameters: */
/* pStream is the stream to read from and write to. You must initialize/update the next_in, avail_in, next_out, and avail_out members. */ /* pStream is the stream to read from and write to. You must initialize/update the next_in, avail_in, next_out, and avail_out members. */
@@ -445,6 +448,7 @@ typedef void *const voidpc;
#define compressBound mz_compressBound #define compressBound mz_compressBound
#define inflateInit mz_inflateInit #define inflateInit mz_inflateInit
#define inflateInit2 mz_inflateInit2 #define inflateInit2 mz_inflateInit2
#define inflateReset mz_inflateReset
#define inflate mz_inflate #define inflate mz_inflate
#define inflateEnd mz_inflateEnd #define inflateEnd mz_inflateEnd
#define uncompress mz_uncompress #define uncompress mz_uncompress