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added uncompress2

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This commit is contained in:
vlad 2020-02-20 19:36:13 +01:00
parent e48d8bab88
commit ccff20b76d
2 changed files with 11 additions and 4 deletions
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13
miniz.c
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@ -552,19 +552,18 @@ int mz_inflateEnd(mz_streamp pStream)
} }
return MZ_OK; return MZ_OK;
} }
int mz_uncompress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong *pSource_len)
int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len)
{ {
mz_stream stream; mz_stream stream;
int status; int status;
memset(&stream, 0, sizeof(stream)); memset(&stream, 0, sizeof(stream));
/* In case mz_ulong is 64-bits (argh I hate longs). */ /* In case mz_ulong is 64-bits (argh I hate longs). */
if ((source_len | *pDest_len) > 0xFFFFFFFFU) if ((*pSource_len | *pDest_len) > 0xFFFFFFFFU)
return MZ_PARAM_ERROR; return MZ_PARAM_ERROR;
stream.next_in = pSource; stream.next_in = pSource;
stream.avail_in = (mz_uint32)source_len; stream.avail_in = (mz_uint32)*pSource_len;
stream.next_out = pDest; stream.next_out = pDest;
stream.avail_out = (mz_uint32)*pDest_len; stream.avail_out = (mz_uint32)*pDest_len;
@ -573,6 +572,7 @@ int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char
return status; return status;
status = mz_inflate(&stream, MZ_FINISH); status = mz_inflate(&stream, MZ_FINISH);
*pSource_len = *pSource_len - stream.avail_in;
if (status != MZ_STREAM_END) if (status != MZ_STREAM_END)
{ {
mz_inflateEnd(&stream); mz_inflateEnd(&stream);
@ -583,6 +583,11 @@ int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char
return mz_inflateEnd(&stream); return mz_inflateEnd(&stream);
} }
int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len)
{
return mz_uncompress2(pDest, pDest_len, pSource, &source_len);
}
const char *mz_error(int err) const char *mz_error(int err)
{ {
static struct static struct

2
miniz.h
View File

@ -388,6 +388,7 @@ MINIZ_EXPORT int mz_inflateEnd(mz_streamp pStream);
/* Single-call decompression. */ /* Single-call decompression. */
/* Returns MZ_OK on success, or one of the error codes from mz_inflate() on failure. */ /* Returns MZ_OK on success, or one of the error codes from mz_inflate() on failure. */
MINIZ_EXPORT int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len); MINIZ_EXPORT int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len);
MINIZ_EXPORT int mz_uncompress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong *pSource_len);
/* Returns a string description of the specified error code, or NULL if the error code is invalid. */ /* Returns a string description of the specified error code, or NULL if the error code is invalid. */
MINIZ_EXPORT const char *mz_error(int err); MINIZ_EXPORT const char *mz_error(int err);
@ -453,6 +454,7 @@ typedef void *const voidpc;
#define inflate mz_inflate #define inflate mz_inflate
#define inflateEnd mz_inflateEnd #define inflateEnd mz_inflateEnd
#define uncompress mz_uncompress #define uncompress mz_uncompress
#define uncompress2 mz_uncompress2
#define crc32 mz_crc32 #define crc32 mz_crc32
#define adler32 mz_adler32 #define adler32 mz_adler32
#define MAX_WBITS 15 #define MAX_WBITS 15