/* miniz.c v1.15 - public domain deflate/inflate, zlib-subset, ZIP reading/writing/appending, PNG writing
   See "unlicense" statement at the end of this file.
   Rich Geldreich <richgel99@gmail.com>, last updated Oct. 13, 2013
   Implements RFC 1950: http://www.ietf.org/rfc/rfc1950.txt and RFC 1951: http://www.ietf.org/rfc/rfc1951.txt

   Most API's defined in miniz.c are optional. For example, to disable the archive related functions just define
   MINIZ_NO_ARCHIVE_APIS, or to get rid of all stdio usage define MINIZ_NO_STDIO (see the list below for more macros).

   * Change History
     10/13/13 v1.15 r4 - Interim bugfix release while I work on the next major release with Zip64 support (almost there!):
       - Critical fix for the MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY bug (thanks kahmyong.moon@hp.com) which could cause locate files to not find files. This bug
        would only have occured in earlier versions if you explicitly used this flag, OR if you used mz_zip_extract_archive_file_to_heap() or mz_zip_add_mem_to_archive_file_in_place()
        (which used this flag). If you can't switch to v1.15 but want to fix this bug, just remove the uses of this flag from both helper funcs (and of course don't use the flag).
       - Bugfix in mz_zip_reader_extract_to_mem_no_alloc() from kymoon when pUser_read_buf is not NULL and compressed size is > uncompressed size
       - Fixing mz_zip_reader_extract_*() funcs so they don't try to extract compressed data from directory entries, to account for weird zipfiles which contain zero-size compressed data on dir entries.
         Hopefully this fix won't cause any issues on weird zip archives, because it assumes the low 16-bits of zip external attributes are DOS attributes (which I believe they always are in practice).
       - Fixing mz_zip_reader_is_file_a_directory() so it doesn't check the internal attributes, just the filename and external attributes
       - mz_zip_reader_init_file() - missing MZ_FCLOSE() call if the seek failed
       - Added cmake support for Linux builds which builds all the examples, tested with clang v3.3 and gcc v4.6.
       - Clang fix for tdefl_write_image_to_png_file_in_memory() from toffaletti
       - Merged MZ_FORCEINLINE fix from hdeanclark
       - Fix <time.h> include before config #ifdef, thanks emil.brink
       - Added tdefl_write_image_to_png_file_in_memory_ex(): supports Y flipping (super useful for OpenGL apps), and explicit control over the compression level (so you can
        set it to 1 for real-time compression).
       - Merged in some compiler fixes from paulharris's github repro.
       - Retested this build under Windows (VS 2010, including static analysis), tcc  0.9.26, gcc v4.6 and clang v3.3.
       - Added example6.c, which dumps an image of the mandelbrot set to a PNG file.
       - Modified example2 to help test the MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY flag more.
       - In r3: Bugfix to mz_zip_writer_add_file() found during merge: Fix possible src file fclose() leak if alignment bytes+local header file write faiiled
		 - In r4: Minor bugfix to mz_zip_writer_add_from_zip_reader(): Was pushing the wrong central dir header offset, appears harmless in this release, but it became a problem in the zip64 branch
     5/20/12 v1.14 - MinGW32/64 GCC 4.6.1 compiler fixes: added MZ_FORCEINLINE, #include <time.h> (thanks fermtect).
     5/19/12 v1.13 - From jason@cornsyrup.org and kelwert@mtu.edu - Fix mz_crc32() so it doesn't compute the wrong CRC-32's when mz_ulong is 64-bit.
       - Temporarily/locally slammed in "typedef unsigned long mz_ulong" and re-ran a randomized regression test on ~500k files.
       - Eliminated a bunch of warnings when compiling with GCC 32-bit/64.
       - Ran all examples, miniz.c, and tinfl.c through MSVC 2008's /analyze (static analysis) option and fixed all warnings (except for the silly
        "Use of the comma-operator in a tested expression.." analysis warning, which I purposely use to work around a MSVC compiler warning).
       - Created 32-bit and 64-bit Codeblocks projects/workspace. Built and tested Linux executables. The codeblocks workspace is compatible with Linux+Win32/x64.
       - Added miniz_tester solution/project, which is a useful little app derived from LZHAM's tester app that I use as part of the regression test.
       - Ran miniz.c and tinfl.c through another series of regression testing on ~500,000 files and archives.
       - Modified example5.c so it purposely disables a bunch of high-level functionality (MINIZ_NO_STDIO, etc.). (Thanks to corysama for the MINIZ_NO_STDIO bug report.)
       - Fix ftell() usage in examples so they exit with an error on files which are too large (a limitation of the examples, not miniz itself).
     4/12/12 v1.12 - More comments, added low-level example5.c, fixed a couple minor level_and_flags issues in the archive API's.
      level_and_flags can now be set to MZ_DEFAULT_COMPRESSION. Thanks to Bruce Dawson <bruced@valvesoftware.com> for the feedback/bug report.
     5/28/11 v1.11 - Added statement from unlicense.org
     5/27/11 v1.10 - Substantial compressor optimizations:
      - Level 1 is now ~4x faster than before. The L1 compressor's throughput now varies between 70-110MB/sec. on a
      - Core i7 (actual throughput varies depending on the type of data, and x64 vs. x86).
      - Improved baseline L2-L9 compression perf. Also, greatly improved compression perf. issues on some file types.
      - Refactored the compression code for better readability and maintainability.
      - Added level 10 compression level (L10 has slightly better ratio than level 9, but could have a potentially large
       drop in throughput on some files).
     5/15/11 v1.09 - Initial stable release.

   * Low-level Deflate/Inflate implementation notes:

     Compression: Use the "tdefl" API's. The compressor supports raw, static, and dynamic blocks, lazy or
     greedy parsing, match length filtering, RLE-only, and Huffman-only streams. It performs and compresses
     approximately as well as zlib.

     Decompression: Use the "tinfl" API's. The entire decompressor is implemented as a single function
     coroutine: see tinfl_decompress(). It supports decompression into a 32KB (or larger power of 2) wrapping buffer, or into a memory
     block large enough to hold the entire file.

     The low-level tdefl/tinfl API's do not make any use of dynamic memory allocation.

   * zlib-style API notes:

     miniz.c implements a fairly large subset of zlib. There's enough functionality present for it to be a drop-in
     zlib replacement in many apps:
        The z_stream struct, optional memory allocation callbacks
        deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound
        inflateInit/inflateInit2/inflate/inflateEnd
        compress, compress2, compressBound, uncompress
        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.

     Limitations:
      The callback API's are not implemented yet. No support for gzip headers or zlib static dictionaries.
      I've tried to closely emulate zlib's various flavors of stream flushing and return status codes, but
      there are no guarantees that miniz.c pulls this off perfectly.

   * PNG writing: See the tdefl_write_image_to_png_file_in_memory() function, originally written by
     Alex Evans. Supports 1-4 bytes/pixel images.

   * ZIP archive API notes:

     The ZIP archive API's where designed with simplicity and efficiency in mind, with just enough abstraction to
     get the job done with minimal fuss. There are simple API's to retrieve file information, read files from
     existing archives, create new archives, append new files to existing archives, or clone archive data from
     one archive to another. It supports archives located in memory or the heap, on disk (using stdio.h),
     or you can specify custom file read/write callbacks.

     - Archive reading: Just call this function to read a single file from a disk archive:

      void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name,
        size_t *pSize, mz_uint zip_flags);

     For more complex cases, use the "mz_zip_reader" functions. Upon opening an archive, the entire central
     directory is located and read as-is into memory, and subsequent file access only occurs when reading individual files.

     - Archives file scanning: The simple way is to use this function to scan a loaded archive for a specific file:

     int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags);

     The locate operation can optionally check file comments too, which (as one example) can be used to identify
     multiple versions of the same file in an archive. This function uses a simple linear search through the central
     directory, so it's not very fast.

     Alternately, you can iterate through all the files in an archive (using mz_zip_reader_get_num_files()) and
     retrieve detailed info on each file by calling mz_zip_reader_file_stat().

     - Archive creation: Use the "mz_zip_writer" functions. The ZIP writer immediately writes compressed file data
     to disk and builds an exact image of the central directory in memory. The central directory image is written
     all at once at the end of the archive file when the archive is finalized.

     The archive writer can optionally align each file's local header and file data to any power of 2 alignment,
     which can be useful when the archive will be read from optical media. Also, the writer supports placing
     arbitrary data blobs at the very beginning of ZIP archives. Archives written using either feature are still
     readable by any ZIP tool.

     - Archive appending: The simple way to add a single file to an archive is to call this function:

      mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name,
        const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags);

     The archive will be created if it doesn't already exist, otherwise it'll be appended to.
     Note the appending is done in-place and is not an atomic operation, so if something goes wrong
     during the operation it's possible the archive could be left without a central directory (although the local
     file headers and file data will be fine, so the archive will be recoverable).

     For more complex archive modification scenarios:
     1. The safest way is to use a mz_zip_reader to read the existing archive, cloning only those bits you want to
     preserve into a new archive using using the mz_zip_writer_add_from_zip_reader() function (which compiles the
     compressed file data as-is). When you're done, delete the old archive and rename the newly written archive, and
     you're done. This is safe but requires a bunch of temporary disk space or heap memory.

     2. Or, you can convert an mz_zip_reader in-place to an mz_zip_writer using mz_zip_writer_init_from_reader(),
     append new files as needed, then finalize the archive which will write an updated central directory to the
     original archive. (This is basically what mz_zip_add_mem_to_archive_file_in_place() does.) There's a
     possibility that the archive's central directory could be lost with this method if anything goes wrong, though.

     - ZIP archive support limitations:
     No zip64 or spanning support. Extraction functions can only handle unencrypted, stored or deflated files.
     Requires streams capable of seeking.

   * This is a header file library, like stb_image.c. To get only a header file, either cut and paste the
     below header, or create miniz.h, #define MINIZ_HEADER_FILE_ONLY, and then include miniz.c from it.

   * Important: For best perf. be sure to customize the below macros for your target platform:
     #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1
     #define MINIZ_LITTLE_ENDIAN 1
     #define MINIZ_HAS_64BIT_REGISTERS 1

   * On platforms using glibc, Be sure to "#define _LARGEFILE64_SOURCE 1" before including miniz.c to ensure miniz
     uses the 64-bit variants: fopen64(), stat64(), etc. Otherwise you won't be able to process large files
     (i.e. 32-bit stat() fails for me on files > 0x7FFFFFFF bytes).
*/

#ifndef MINIZ_HEADER_INCLUDED
#define MINIZ_HEADER_INCLUDED

#include <stdlib.h>

// Defines to completely disable specific portions of miniz.c:
// If all macros here are defined the only functionality remaining will be CRC-32, adler-32, tinfl, and tdefl.

// Define MINIZ_NO_STDIO to disable all usage and any functions which rely on stdio for file I/O.
//#define MINIZ_NO_STDIO

// If MINIZ_NO_TIME is specified then the ZIP archive functions will not be able to get the current time, or
// get/set file times, and the C run-time funcs that get/set times won't be called.
// The current downside is the times written to your archives will be from 1979.
//#define MINIZ_NO_TIME

// Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's.
//#define MINIZ_NO_ARCHIVE_APIS

// Define MINIZ_NO_ARCHIVE_APIS to disable all writing related ZIP archive API's.
//#define MINIZ_NO_ARCHIVE_WRITING_APIS

// Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style compression/decompression API's.
//#define MINIZ_NO_ZLIB_APIS

// Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to prevent conflicts against stock zlib.
//#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES

// Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and realloc.
// Note if MINIZ_NO_MALLOC is defined then the user must always provide custom user alloc/free/realloc
// callbacks to the zlib and archive API's, and a few stand-alone helper API's which don't provide custom user
// functions (such as tdefl_compress_mem_to_heap() and tinfl_decompress_mem_to_heap()) won't work.
//#define MINIZ_NO_MALLOC

#if defined(__TINYC__) && (defined(__linux) || defined(__linux__))
  // TODO: Work around "error: include file 'sys\utime.h' when compiling with tcc on Linux
  #define MINIZ_NO_TIME
#endif

#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS)
  #include <time.h>
#endif

#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || defined(__i386) || defined(__i486__) || defined(__i486) || defined(i386) || defined(__ia64__) || defined(__x86_64__)
// MINIZ_X86_OR_X64_CPU is only used to help set the below macros.
#define MINIZ_X86_OR_X64_CPU 1
#endif

#if (__BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU
// Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian.
#define MINIZ_LITTLE_ENDIAN 1
#endif

#if MINIZ_X86_OR_X64_CPU
// Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient integer loads and stores from unaligned addresses.
#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1
#endif

#if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__) || defined(__ia64__) || defined(__x86_64__)
// Set MINIZ_HAS_64BIT_REGISTERS to 1 if operations on 64-bit integers are reasonably fast (and don't involve compiler generated calls to helper functions).
#define MINIZ_HAS_64BIT_REGISTERS 1
#endif

#ifdef __cplusplus
extern "C" {
#endif

// ------------------- zlib-style API Definitions.

// For more compatibility with zlib, miniz.c uses unsigned long for some parameters/struct members. Beware: mz_ulong can be either 32 or 64-bits!
typedef unsigned long mz_ulong;

// mz_free() internally uses the MZ_FREE() macro (which by default calls free() unless you've modified the MZ_MALLOC macro) to release a block allocated from the heap.
void mz_free(void *p);

#define MZ_ADLER32_INIT (1)
// mz_adler32() returns the initial adler-32 value to use when called with ptr==NULL.
mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len);

#define MZ_CRC32_INIT (0)
// mz_crc32() returns the initial CRC-32 value to use when called with ptr==NULL.
mz_ulong mz_crc32(mz_ulong crc, const unsigned char *ptr, size_t buf_len);

// Compression strategies.
enum { MZ_DEFAULT_STRATEGY = 0, MZ_FILTERED = 1, MZ_HUFFMAN_ONLY = 2, MZ_RLE = 3, MZ_FIXED = 4 };

// Method
#define MZ_DEFLATED 8

#ifndef MINIZ_NO_ZLIB_APIS

// Heap allocation callbacks.
// Note that mz_alloc_func parameter types purpsosely differ from zlib's: items/size is size_t, not unsigned long.
typedef void *(*mz_alloc_func)(void *opaque, size_t items, size_t size);
typedef void (*mz_free_func)(void *opaque, void *address);
typedef void *(*mz_realloc_func)(void *opaque, void *address, size_t items, size_t size);

#define MZ_VERSION          "9.1.15"
#define MZ_VERNUM           0x91F0
#define MZ_VER_MAJOR        9
#define MZ_VER_MINOR        1
#define MZ_VER_REVISION     15
#define MZ_VER_SUBREVISION  0

// Flush values. For typical usage you only need MZ_NO_FLUSH and MZ_FINISH. The other values are for advanced use (refer to the zlib docs).
enum { MZ_NO_FLUSH = 0, MZ_PARTIAL_FLUSH = 1, MZ_SYNC_FLUSH = 2, MZ_FULL_FLUSH = 3, MZ_FINISH = 4, MZ_BLOCK = 5 };

// Return status codes. MZ_PARAM_ERROR is non-standard.
enum { MZ_OK = 0, MZ_STREAM_END = 1, MZ_NEED_DICT = 2, MZ_ERRNO = -1, MZ_STREAM_ERROR = -2, MZ_DATA_ERROR = -3, MZ_MEM_ERROR = -4, MZ_BUF_ERROR = -5, MZ_VERSION_ERROR = -6, MZ_PARAM_ERROR = -10000 };

// Compression levels: 0-9 are the standard zlib-style levels, 10 is best possible compression (not zlib compatible, and may be very slow), MZ_DEFAULT_COMPRESSION=MZ_DEFAULT_LEVEL.
enum { MZ_NO_COMPRESSION = 0, MZ_BEST_SPEED = 1, MZ_BEST_COMPRESSION = 9, MZ_UBER_COMPRESSION = 10, MZ_DEFAULT_LEVEL = 6, MZ_DEFAULT_COMPRESSION = -1 };

// Window bits
#define MZ_DEFAULT_WINDOW_BITS 15

struct mz_internal_state;

// Compression/decompression stream struct.
typedef struct mz_stream_s
{
  const unsigned char *next_in;     // pointer to next byte to read
  unsigned int avail_in;            // number of bytes available at next_in
  mz_ulong total_in;                // total number of bytes consumed so far

  unsigned char *next_out;          // pointer to next byte to write
  unsigned int avail_out;           // number of bytes that can be written to next_out
  mz_ulong total_out;               // total number of bytes produced so far

  char *msg;                        // error msg (unused)
  struct mz_internal_state *state;  // internal state, allocated by zalloc/zfree

  mz_alloc_func zalloc;             // optional heap allocation function (defaults to malloc)
  mz_free_func zfree;               // optional heap free function (defaults to free)
  void *opaque;                     // heap alloc function user pointer

  int data_type;                    // data_type (unused)
  mz_ulong adler;                   // adler32 of the source or uncompressed data
  mz_ulong reserved;                // not used
} mz_stream;

typedef mz_stream *mz_streamp;

// Returns the version string of miniz.c.
const char *mz_version(void);

// mz_deflateInit() initializes a compressor with default options:
// Parameters:
//  pStream must point to an initialized mz_stream struct.
//  level must be between [MZ_NO_COMPRESSION, MZ_BEST_COMPRESSION].
//  level 1 enables a specially optimized compression function that's been optimized purely for performance, not ratio.
//  (This special func. is currently only enabled when MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are defined.)
// Return values:
//  MZ_OK on success.
//  MZ_STREAM_ERROR if the stream is bogus.
//  MZ_PARAM_ERROR if the input parameters are bogus.
//  MZ_MEM_ERROR on out of memory.
int mz_deflateInit(mz_streamp pStream, int level);

// mz_deflateInit2() is like mz_deflate(), except with more control:
// Additional parameters:
//   method must be MZ_DEFLATED
//   window_bits must be MZ_DEFAULT_WINDOW_BITS (to wrap the deflate stream with zlib header/adler-32 footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate/no header or footer)
//   mem_level must be between [1, 9] (it's checked but ignored by miniz.c)
int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy);

// Quickly resets a compressor without having to reallocate anything. Same as calling mz_deflateEnd() followed by mz_deflateInit()/mz_deflateInit2().
int mz_deflateReset(mz_streamp pStream);

// mz_deflate() compresses the input to output, consuming as much of the input and producing as much output as possible.
// 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.
//   flush may be MZ_NO_FLUSH, MZ_PARTIAL_FLUSH/MZ_SYNC_FLUSH, MZ_FULL_FLUSH, or MZ_FINISH.
// Return values:
//   MZ_OK on success (when flushing, or if more input is needed but not available, and/or there's more output to be written but the output buffer is full).
//   MZ_STREAM_END if all input has been consumed and all output bytes have been written. Don't call mz_deflate() on the stream anymore.
//   MZ_STREAM_ERROR if the stream is bogus.
//   MZ_PARAM_ERROR if one of the parameters is invalid.
//   MZ_BUF_ERROR if no forward progress is possible because the input and/or output buffers are empty. (Fill up the input buffer or free up some output space and try again.)
int mz_deflate(mz_streamp pStream, int flush);

// mz_deflateEnd() deinitializes a compressor:
// Return values:
//  MZ_OK on success.
//  MZ_STREAM_ERROR if the stream is bogus.
int mz_deflateEnd(mz_streamp pStream);

// mz_deflateBound() returns a (very) conservative upper bound on the amount of data that could be generated by deflate(), assuming flush is set to only MZ_NO_FLUSH or MZ_FINISH.
mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len);

// Single-call compression functions mz_compress() and mz_compress2():
// Returns MZ_OK on success, or one of the error codes from mz_deflate() on failure.
int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len);
int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len, int level);

// mz_compressBound() returns a (very) conservative upper bound on the amount of data that could be generated by calling mz_compress().
mz_ulong mz_compressBound(mz_ulong source_len);

// Initializes a decompressor.
int mz_inflateInit(mz_streamp pStream);

// mz_inflateInit2() is like mz_inflateInit() with an additional option that controls the window size and whether or not the stream has been wrapped with a zlib header/footer:
// 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);

// 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:
//   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.
//   flush may be MZ_NO_FLUSH, MZ_SYNC_FLUSH, or MZ_FINISH.
//   On the first call, if flush is MZ_FINISH it's assumed the input and output buffers are both sized large enough to decompress the entire stream in a single call (this is slightly faster).
//   MZ_FINISH implies that there are no more source bytes available beside what's already in the input buffer, and that the output buffer is large enough to hold the rest of the decompressed data.
// Return values:
//   MZ_OK on success. Either more input is needed but not available, and/or there's more output to be written but the output buffer is full.
//   MZ_STREAM_END if all needed input has been consumed and all output bytes have been written. For zlib streams, the adler-32 of the decompressed data has also been verified.
//   MZ_STREAM_ERROR if the stream is bogus.
//   MZ_DATA_ERROR if the deflate stream is invalid.
//   MZ_PARAM_ERROR if one of the parameters is invalid.
//   MZ_BUF_ERROR if no forward progress is possible because the input buffer is empty but the inflater needs more input to continue, or if the output buffer is not large enough. Call mz_inflate() again
//   with more input data, or with more room in the output buffer (except when using single call decompression, described above).
int mz_inflate(mz_streamp pStream, int flush);

// Deinitializes a decompressor.
int mz_inflateEnd(mz_streamp pStream);

// Single-call decompression.
// Returns MZ_OK on success, or one of the error codes from mz_inflate() on failure.
int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len);

// Returns a string description of the specified error code, or NULL if the error code is invalid.
const char *mz_error(int err);

// Redefine zlib-compatible names to miniz equivalents, so miniz.c can be used as a drop-in replacement for the subset of zlib that miniz.c supports.
// Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility if you use zlib in the same project.
#ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES
  typedef unsigned char Byte;
  typedef unsigned int uInt;
  typedef mz_ulong uLong;
  typedef Byte Bytef;
  typedef uInt uIntf;
  typedef char charf;
  typedef int intf;
  typedef void *voidpf;
  typedef uLong uLongf;
  typedef void *voidp;
  typedef void *const voidpc;
  #define Z_NULL                0
  #define Z_NO_FLUSH            MZ_NO_FLUSH
  #define Z_PARTIAL_FLUSH       MZ_PARTIAL_FLUSH
  #define Z_SYNC_FLUSH          MZ_SYNC_FLUSH
  #define Z_FULL_FLUSH          MZ_FULL_FLUSH
  #define Z_FINISH              MZ_FINISH
  #define Z_BLOCK               MZ_BLOCK
  #define Z_OK                  MZ_OK
  #define Z_STREAM_END          MZ_STREAM_END
  #define Z_NEED_DICT           MZ_NEED_DICT
  #define Z_ERRNO               MZ_ERRNO
  #define Z_STREAM_ERROR        MZ_STREAM_ERROR
  #define Z_DATA_ERROR          MZ_DATA_ERROR
  #define Z_MEM_ERROR           MZ_MEM_ERROR
  #define Z_BUF_ERROR           MZ_BUF_ERROR
  #define Z_VERSION_ERROR       MZ_VERSION_ERROR
  #define Z_PARAM_ERROR         MZ_PARAM_ERROR
  #define Z_NO_COMPRESSION      MZ_NO_COMPRESSION
  #define Z_BEST_SPEED          MZ_BEST_SPEED
  #define Z_BEST_COMPRESSION    MZ_BEST_COMPRESSION
  #define Z_DEFAULT_COMPRESSION MZ_DEFAULT_COMPRESSION
  #define Z_DEFAULT_STRATEGY    MZ_DEFAULT_STRATEGY
  #define Z_FILTERED            MZ_FILTERED
  #define Z_HUFFMAN_ONLY        MZ_HUFFMAN_ONLY
  #define Z_RLE                 MZ_RLE
  #define Z_FIXED               MZ_FIXED
  #define Z_DEFLATED            MZ_DEFLATED
  #define Z_DEFAULT_WINDOW_BITS MZ_DEFAULT_WINDOW_BITS
  #define alloc_func            mz_alloc_func
  #define free_func             mz_free_func
  #define internal_state        mz_internal_state
  #define z_stream              mz_stream
  #define deflateInit           mz_deflateInit
  #define deflateInit2          mz_deflateInit2
  #define deflateReset          mz_deflateReset
  #define deflate               mz_deflate
  #define deflateEnd            mz_deflateEnd
  #define deflateBound          mz_deflateBound
  #define compress              mz_compress
  #define compress2             mz_compress2
  #define compressBound         mz_compressBound
  #define inflateInit           mz_inflateInit
  #define inflateInit2          mz_inflateInit2
  #define inflate               mz_inflate
  #define inflateEnd            mz_inflateEnd
  #define uncompress            mz_uncompress
  #define crc32                 mz_crc32
  #define adler32               mz_adler32
  #define MAX_WBITS             15
  #define MAX_MEM_LEVEL         9
  #define zError                mz_error
  #define ZLIB_VERSION          MZ_VERSION
  #define ZLIB_VERNUM           MZ_VERNUM
  #define ZLIB_VER_MAJOR        MZ_VER_MAJOR
  #define ZLIB_VER_MINOR        MZ_VER_MINOR
  #define ZLIB_VER_REVISION     MZ_VER_REVISION
  #define ZLIB_VER_SUBREVISION  MZ_VER_SUBREVISION
  #define zlibVersion           mz_version
  #define zlib_version          mz_version()
#endif // #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES

#endif // MINIZ_NO_ZLIB_APIS

// ------------------- Types and macros

typedef unsigned char mz_uint8;
typedef signed short mz_int16;
typedef unsigned short mz_uint16;
typedef unsigned int mz_uint32;
typedef unsigned int mz_uint;
typedef long long mz_int64;
typedef unsigned long long mz_uint64;
typedef int mz_bool;

#define MZ_FALSE (0)
#define MZ_TRUE (1)

// An attempt to work around MSVC's spammy "warning C4127: conditional expression is constant" message.
#ifdef _MSC_VER
   #define MZ_MACRO_END while (0, 0)
#else
   #define MZ_MACRO_END while (0)
#endif

// ------------------- ZIP archive reading/writing

#ifndef MINIZ_NO_ARCHIVE_APIS

enum
{
  MZ_ZIP_MAX_IO_BUF_SIZE = 64*1024,
  MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 260,
  MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 256
};

typedef struct
{
  mz_uint32 m_file_index;
  mz_uint32 m_central_dir_ofs;
  mz_uint16 m_version_made_by;
  mz_uint16 m_version_needed;
  mz_uint16 m_bit_flag;
  mz_uint16 m_method;
#ifndef MINIZ_NO_TIME
  time_t m_time;
#endif
  mz_uint32 m_crc32;
  mz_uint64 m_comp_size;
  mz_uint64 m_uncomp_size;
  mz_uint16 m_internal_attr;
  mz_uint32 m_external_attr;
  mz_uint64 m_local_header_ofs;
  mz_uint32 m_comment_size;
  char m_filename[MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE];
  char m_comment[MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE];
} mz_zip_archive_file_stat;

typedef size_t (*mz_file_read_func)(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n);
typedef size_t (*mz_file_write_func)(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n);

struct mz_zip_internal_state_tag;
typedef struct mz_zip_internal_state_tag mz_zip_internal_state;

typedef enum
{
  MZ_ZIP_MODE_INVALID = 0,
  MZ_ZIP_MODE_READING = 1,
  MZ_ZIP_MODE_WRITING = 2,
  MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3
} mz_zip_mode;

typedef struct mz_zip_archive_tag
{
  mz_uint64 m_archive_size;
  mz_uint64 m_central_directory_file_ofs;
  mz_uint m_total_files;
  mz_zip_mode m_zip_mode;

  mz_uint m_file_offset_alignment;

  mz_alloc_func m_pAlloc;
  mz_free_func m_pFree;
  mz_realloc_func m_pRealloc;
  void *m_pAlloc_opaque;

  mz_file_read_func m_pRead;
  mz_file_write_func m_pWrite;
  void *m_pIO_opaque;

  mz_zip_internal_state *m_pState;

} mz_zip_archive;

typedef enum
{
  MZ_ZIP_FLAG_CASE_SENSITIVE                = 0x0100,
  MZ_ZIP_FLAG_IGNORE_PATH                   = 0x0200,
  MZ_ZIP_FLAG_COMPRESSED_DATA               = 0x0400,
  MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY = 0x0800
} mz_zip_flags;

// ZIP archive reading

// Inits a ZIP archive reader.
// These functions read and validate the archive's central directory.
mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, mz_uint32 flags);
mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, size_t size, mz_uint32 flags);

#ifndef MINIZ_NO_STDIO
mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint32 flags);
#endif

// Returns the total number of files in the archive.
mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip);

// Returns detailed information about an archive file entry.
mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, mz_zip_archive_file_stat *pStat);

// Determines if an archive file entry is a directory entry.
mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, mz_uint file_index);
mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, mz_uint file_index);

// Retrieves the filename of an archive file entry.
// Returns the number of bytes written to pFilename, or if filename_buf_size is 0 this function returns the number of bytes needed to fully store the filename.
mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, char *pFilename, mz_uint filename_buf_size);

// Attempts to locates a file in the archive's central directory.
// Valid flags: MZ_ZIP_FLAG_CASE_SENSITIVE, MZ_ZIP_FLAG_IGNORE_PATH
// Returns -1 if the file cannot be found.
int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags);

// Extracts a archive file to a memory buffer using no memory allocation.
mz_bool mz_zip_reader_extract_to_mem_no_alloc(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size);
mz_bool mz_zip_reader_extract_file_to_mem_no_alloc(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size);

// Extracts a archive file to a memory buffer.
mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags);
mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags);

// Extracts a archive file to a dynamically allocated heap buffer.
void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, size_t *pSize, mz_uint flags);
void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, const char *pFilename, size_t *pSize, mz_uint flags);

// Extracts a archive file using a callback function to output the file's data.
mz_bool mz_zip_reader_extract_to_callback(mz_zip_archive *pZip, mz_uint file_index, mz_file_write_func pCallback, void *pOpaque, mz_uint flags);
mz_bool mz_zip_reader_extract_file_to_callback(mz_zip_archive *pZip, const char *pFilename, mz_file_write_func pCallback, void *pOpaque, mz_uint flags);

#ifndef MINIZ_NO_STDIO
// Extracts a archive file to a disk file and sets its last accessed and modified times.
// This function only extracts files, not archive directory records.
mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, const char *pDst_filename, mz_uint flags);
mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, mz_uint flags);
#endif

// Ends archive reading, freeing all allocations, and closing the input archive file if mz_zip_reader_init_file() was used.
mz_bool mz_zip_reader_end(mz_zip_archive *pZip);

// ZIP archive writing

#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS

// Inits a ZIP archive writer.
mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size);
mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size);

#ifndef MINIZ_NO_STDIO
mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning);
#endif

// Converts a ZIP archive reader object into a writer object, to allow efficient in-place file appends to occur on an existing archive.
// For archives opened using mz_zip_reader_init_file, pFilename must be the archive's filename so it can be reopened for writing. If the file can't be reopened, mz_zip_reader_end() will be called.
// For archives opened using mz_zip_reader_init_mem, the memory block must be growable using the realloc callback (which defaults to realloc unless you've overridden it).
// Finally, for archives opened using mz_zip_reader_init, the mz_zip_archive's user provided m_pWrite function cannot be NULL.
// Note: In-place archive modification is not recommended unless you know what you're doing, because if execution stops or something goes wrong before
// the archive is finalized the file's central directory will be hosed.
mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, const char *pFilename);

// Adds the contents of a memory buffer to an archive. These functions record the current local time into the archive.
// To add a directory entry, call this method with an archive name ending in a forwardslash with empty buffer.
// level_and_flags - compression level (0-10, see MZ_BEST_SPEED, MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more mz_zip_flags, or just set to MZ_DEFAULT_COMPRESSION.
mz_bool mz_zip_writer_add_mem(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, mz_uint level_and_flags);
mz_bool mz_zip_writer_add_mem_ex(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, mz_uint64 uncomp_size, mz_uint32 uncomp_crc32);

#ifndef MINIZ_NO_STDIO
// Adds the contents of a disk file to an archive. This function also records the disk file's modified time into the archive.
// level_and_flags - compression level (0-10, see MZ_BEST_SPEED, MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more mz_zip_flags, or just set to MZ_DEFAULT_COMPRESSION.
mz_bool mz_zip_writer_add_file(mz_zip_archive *pZip, const char *pArchive_name, const char *pSrc_filename, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags);
#endif

// Adds a file to an archive by fully cloning the data from another archive.
// This function fully clones the source file's compressed data (no recompression), along with its full filename, extra data, and comment fields.
mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *pSource_zip, mz_uint file_index);

// Finalizes the archive by writing the central directory records followed by the end of central directory record.
// After an archive is finalized, the only valid call on the mz_zip_archive struct is mz_zip_writer_end().
// An archive must be manually finalized by calling this function for it to be valid.
mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip);
mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **pBuf, size_t *pSize);

// Ends archive writing, freeing all allocations, and closing the output file if mz_zip_writer_init_file() was used.
// Note for the archive to be valid, it must have been finalized before ending.
mz_bool mz_zip_writer_end(mz_zip_archive *pZip);

// Misc. high-level helper functions:

// mz_zip_add_mem_to_archive_file_in_place() efficiently (but not atomically) appends a memory blob to a ZIP archive.
// level_and_flags - compression level (0-10, see MZ_BEST_SPEED, MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more mz_zip_flags, or just set to MZ_DEFAULT_COMPRESSION.
mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags);

// Reads a single file from an archive into a heap block.
// Returns NULL on failure.
void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint zip_flags);

#endif // #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS

#endif // #ifndef MINIZ_NO_ARCHIVE_APIS

// ------------------- Low-level Decompression API Definitions

// Decompression flags used by tinfl_decompress().
// TINFL_FLAG_PARSE_ZLIB_HEADER: If set, the input has a valid zlib header and ends with an adler32 checksum (it's a valid zlib stream). Otherwise, the input is a raw deflate stream.
// TINFL_FLAG_HAS_MORE_INPUT: If set, there are more input bytes available beyond the end of the supplied input buffer. If clear, the input buffer contains all remaining input.
// TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF: If set, the output buffer is large enough to hold the entire decompressed stream. If clear, the output buffer is at least the size of the dictionary (typically 32KB).
// TINFL_FLAG_COMPUTE_ADLER32: Force adler-32 checksum computation of the decompressed bytes.
enum
{
  TINFL_FLAG_PARSE_ZLIB_HEADER = 1,
  TINFL_FLAG_HAS_MORE_INPUT = 2,
  TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF = 4,
  TINFL_FLAG_COMPUTE_ADLER32 = 8
};

// High level decompression functions:
// tinfl_decompress_mem_to_heap() decompresses a block in memory to a heap block allocated via malloc().
// On entry:
//  pSrc_buf, src_buf_len: Pointer and size of the Deflate or zlib source data to decompress.
// On return:
//  Function returns a pointer to the decompressed data, or NULL on failure.
//  *pOut_len will be set to the decompressed data's size, which could be larger than src_buf_len on uncompressible data.
//  The caller must call mz_free() on the returned block when it's no longer needed.
void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags);

// tinfl_decompress_mem_to_mem() decompresses a block in memory to another block in memory.
// Returns TINFL_DECOMPRESS_MEM_TO_MEM_FAILED on failure, or the number of bytes written on success.
#define TINFL_DECOMPRESS_MEM_TO_MEM_FAILED ((size_t)(-1))
size_t tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags);

// tinfl_decompress_mem_to_callback() decompresses a block in memory to an internal 32KB buffer, and a user provided callback function will be called to flush the buffer.
// Returns 1 on success or 0 on failure.
typedef int (*tinfl_put_buf_func_ptr)(const void* pBuf, int len, void *pUser);
int tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size, tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags);

struct tinfl_decompressor_tag; typedef struct tinfl_decompressor_tag tinfl_decompressor;

// Max size of LZ dictionary.
#define TINFL_LZ_DICT_SIZE 32768

// Return status.
typedef enum
{
  TINFL_STATUS_BAD_PARAM = -3,
  TINFL_STATUS_ADLER32_MISMATCH = -2,
  TINFL_STATUS_FAILED = -1,
  TINFL_STATUS_DONE = 0,
  TINFL_STATUS_NEEDS_MORE_INPUT = 1,
  TINFL_STATUS_HAS_MORE_OUTPUT = 2
} tinfl_status;

// Initializes the decompressor to its initial state.
#define tinfl_init(r) do { (r)->m_state = 0; } MZ_MACRO_END
#define tinfl_get_adler32(r) (r)->m_check_adler32

// Main low-level decompressor coroutine function. This is the only function actually needed for decompression. All the other functions are just high-level helpers for improved usability.
// This is a universal API, i.e. it can be used as a building block to build any desired higher level decompression API. In the limit case, it can be called once per every byte input or output.
tinfl_status tinfl_decompress(tinfl_decompressor *r, const mz_uint8 *pIn_buf_next, size_t *pIn_buf_size, mz_uint8 *pOut_buf_start, mz_uint8 *pOut_buf_next, size_t *pOut_buf_size, const mz_uint32 decomp_flags);

// Internal/private bits follow.
enum
{
  TINFL_MAX_HUFF_TABLES = 3, TINFL_MAX_HUFF_SYMBOLS_0 = 288, TINFL_MAX_HUFF_SYMBOLS_1 = 32, TINFL_MAX_HUFF_SYMBOLS_2 = 19,
  TINFL_FAST_LOOKUP_BITS = 10, TINFL_FAST_LOOKUP_SIZE = 1 << TINFL_FAST_LOOKUP_BITS
};

typedef struct
{
  mz_uint8 m_code_size[TINFL_MAX_HUFF_SYMBOLS_0];
  mz_int16 m_look_up[TINFL_FAST_LOOKUP_SIZE], m_tree[TINFL_MAX_HUFF_SYMBOLS_0 * 2];
} tinfl_huff_table;

#if MINIZ_HAS_64BIT_REGISTERS
  #define TINFL_USE_64BIT_BITBUF 1
#endif

#if TINFL_USE_64BIT_BITBUF
  typedef mz_uint64 tinfl_bit_buf_t;
  #define TINFL_BITBUF_SIZE (64)
#else
  typedef mz_uint32 tinfl_bit_buf_t;
  #define TINFL_BITBUF_SIZE (32)
#endif

struct tinfl_decompressor_tag
{
  mz_uint32 m_state, m_num_bits, m_zhdr0, m_zhdr1, m_z_adler32, m_final, m_type, m_check_adler32, m_dist, m_counter, m_num_extra, m_table_sizes[TINFL_MAX_HUFF_TABLES];
  tinfl_bit_buf_t m_bit_buf;
  size_t m_dist_from_out_buf_start;
  tinfl_huff_table m_tables[TINFL_MAX_HUFF_TABLES];
  mz_uint8 m_raw_header[4], m_len_codes[TINFL_MAX_HUFF_SYMBOLS_0 + TINFL_MAX_HUFF_SYMBOLS_1 + 137];
};

// ------------------- Low-level Compression API Definitions

// Set TDEFL_LESS_MEMORY to 1 to use less memory (compression will be slightly slower, and raw/dynamic blocks will be output more frequently).
#define TDEFL_LESS_MEMORY 0

// tdefl_init() compression flags logically OR'd together (low 12 bits contain the max. number of probes per dictionary search):
// TDEFL_DEFAULT_MAX_PROBES: The compressor defaults to 128 dictionary probes per dictionary search. 0=Huffman only, 1=Huffman+LZ (fastest/crap compression), 4095=Huffman+LZ (slowest/best compression).
enum
{
  TDEFL_HUFFMAN_ONLY = 0, TDEFL_DEFAULT_MAX_PROBES = 128, TDEFL_MAX_PROBES_MASK = 0xFFF
};

// TDEFL_WRITE_ZLIB_HEADER: If set, the compressor outputs a zlib header before the deflate data, and the Adler-32 of the source data at the end. Otherwise, you'll get raw deflate data.
// TDEFL_COMPUTE_ADLER32: Always compute the adler-32 of the input data (even when not writing zlib headers).
// TDEFL_GREEDY_PARSING_FLAG: Set to use faster greedy parsing, instead of more efficient lazy parsing.
// TDEFL_NONDETERMINISTIC_PARSING_FLAG: Enable to decrease the compressor's initialization time to the minimum, but the output may vary from run to run given the same input (depending on the contents of memory).
// TDEFL_RLE_MATCHES: Only look for RLE matches (matches with a distance of 1)
// TDEFL_FILTER_MATCHES: Discards matches <= 5 chars if enabled.
// TDEFL_FORCE_ALL_STATIC_BLOCKS: Disable usage of optimized Huffman tables.
// TDEFL_FORCE_ALL_RAW_BLOCKS: Only use raw (uncompressed) deflate blocks.
// The low 12 bits are reserved to control the max # of hash probes per dictionary lookup (see TDEFL_MAX_PROBES_MASK).
enum
{
  TDEFL_WRITE_ZLIB_HEADER             = 0x01000,
  TDEFL_COMPUTE_ADLER32               = 0x02000,
  TDEFL_GREEDY_PARSING_FLAG           = 0x04000,
  TDEFL_NONDETERMINISTIC_PARSING_FLAG = 0x08000,
  TDEFL_RLE_MATCHES                   = 0x10000,
  TDEFL_FILTER_MATCHES                = 0x20000,
  TDEFL_FORCE_ALL_STATIC_BLOCKS       = 0x40000,
  TDEFL_FORCE_ALL_RAW_BLOCKS          = 0x80000
};

// High level compression functions:
// tdefl_compress_mem_to_heap() compresses a block in memory to a heap block allocated via malloc().
// On entry:
//  pSrc_buf, src_buf_len: Pointer and size of source block to compress.
//  flags: The max match finder probes (default is 128) logically OR'd against the above flags. Higher probes are slower but improve compression.
// On return:
//  Function returns a pointer to the compressed data, or NULL on failure.
//  *pOut_len will be set to the compressed data's size, which could be larger than src_buf_len on uncompressible data.
//  The caller must free() the returned block when it's no longer needed.
void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags);

// tdefl_compress_mem_to_mem() compresses a block in memory to another block in memory.
// Returns 0 on failure.
size_t tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags);

// Compresses an image to a compressed PNG file in memory.
// On entry:
//  pImage, w, h, and num_chans describe the image to compress. num_chans may be 1, 2, 3, or 4. 
//  The image pitch in bytes per scanline will be w*num_chans. The leftmost pixel on the top scanline is stored first in memory.
//  level may range from [0,10], use MZ_NO_COMPRESSION, MZ_BEST_SPEED, MZ_BEST_COMPRESSION, etc. or a decent default is MZ_DEFAULT_LEVEL
//  If flip is true, the image will be flipped on the Y axis (useful for OpenGL apps).
// On return:
//  Function returns a pointer to the compressed data, or NULL on failure.
//  *pLen_out will be set to the size of the PNG image file.
//  The caller must mz_free() the returned heap block (which will typically be larger than *pLen_out) when it's no longer needed.
void *tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, int h, int num_chans, size_t *pLen_out, mz_uint level, mz_bool flip);
void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out);

// Output stream interface. The compressor uses this interface to write compressed data. It'll typically be called TDEFL_OUT_BUF_SIZE at a time.
typedef mz_bool (*tdefl_put_buf_func_ptr)(const void* pBuf, int len, void *pUser);

// tdefl_compress_mem_to_output() compresses a block to an output stream. The above helpers use this function internally.
mz_bool tdefl_compress_mem_to_output(const void *pBuf, size_t buf_len, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags);

enum { TDEFL_MAX_HUFF_TABLES = 3, TDEFL_MAX_HUFF_SYMBOLS_0 = 288, TDEFL_MAX_HUFF_SYMBOLS_1 = 32, TDEFL_MAX_HUFF_SYMBOLS_2 = 19, TDEFL_LZ_DICT_SIZE = 32768, TDEFL_LZ_DICT_SIZE_MASK = TDEFL_LZ_DICT_SIZE - 1, TDEFL_MIN_MATCH_LEN = 3, TDEFL_MAX_MATCH_LEN = 258 };

// TDEFL_OUT_BUF_SIZE MUST be large enough to hold a single entire compressed output block (using static/fixed Huffman codes).
#if TDEFL_LESS_MEMORY
enum { TDEFL_LZ_CODE_BUF_SIZE = 24 * 1024, TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13 ) / 10, TDEFL_MAX_HUFF_SYMBOLS = 288, TDEFL_LZ_HASH_BITS = 12, TDEFL_LEVEL1_HASH_SIZE_MASK = 4095, TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3, TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS };
#else
enum { TDEFL_LZ_CODE_BUF_SIZE = 64 * 1024, TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13 ) / 10, TDEFL_MAX_HUFF_SYMBOLS = 288, TDEFL_LZ_HASH_BITS = 15, TDEFL_LEVEL1_HASH_SIZE_MASK = 4095, TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3, TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS };
#endif

// The low-level tdefl functions below may be used directly if the above helper functions aren't flexible enough. The low-level functions don't make any heap allocations, unlike the above helper functions.
typedef enum
{
  TDEFL_STATUS_BAD_PARAM = -2,
  TDEFL_STATUS_PUT_BUF_FAILED = -1,
  TDEFL_STATUS_OKAY = 0,
  TDEFL_STATUS_DONE = 1,
} tdefl_status;

// Must map to MZ_NO_FLUSH, MZ_SYNC_FLUSH, etc. enums
typedef enum
{
  TDEFL_NO_FLUSH = 0,
  TDEFL_SYNC_FLUSH = 2,
  TDEFL_FULL_FLUSH = 3,
  TDEFL_FINISH = 4
} tdefl_flush;

// tdefl's compression state structure.
typedef struct
{
  tdefl_put_buf_func_ptr m_pPut_buf_func;
  void *m_pPut_buf_user;
  mz_uint m_flags, m_max_probes[2];
  int m_greedy_parsing;
  mz_uint m_adler32, m_lookahead_pos, m_lookahead_size, m_dict_size;
  mz_uint8 *m_pLZ_code_buf, *m_pLZ_flags, *m_pOutput_buf, *m_pOutput_buf_end;
  mz_uint m_num_flags_left, m_total_lz_bytes, m_lz_code_buf_dict_pos, m_bits_in, m_bit_buffer;
  mz_uint m_saved_match_dist, m_saved_match_len, m_saved_lit, m_output_flush_ofs, m_output_flush_remaining, m_finished, m_block_index, m_wants_to_finish;
  tdefl_status m_prev_return_status;
  const void *m_pIn_buf;
  void *m_pOut_buf;
  size_t *m_pIn_buf_size, *m_pOut_buf_size;
  tdefl_flush m_flush;
  const mz_uint8 *m_pSrc;
  size_t m_src_buf_left, m_out_buf_ofs;
  mz_uint8 m_dict[TDEFL_LZ_DICT_SIZE + TDEFL_MAX_MATCH_LEN - 1];
  mz_uint16 m_huff_count[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS];
  mz_uint16 m_huff_codes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS];
  mz_uint8 m_huff_code_sizes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS];
  mz_uint8 m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE];
  mz_uint16 m_next[TDEFL_LZ_DICT_SIZE];
  mz_uint16 m_hash[TDEFL_LZ_HASH_SIZE];
  mz_uint8 m_output_buf[TDEFL_OUT_BUF_SIZE];
} tdefl_compressor;

// Initializes the compressor.
// There is no corresponding deinit() function because the tdefl API's do not dynamically allocate memory.
// pBut_buf_func: If NULL, output data will be supplied to the specified callback. In this case, the user should call the tdefl_compress_buffer() API for compression.
// If pBut_buf_func is NULL the user should always call the tdefl_compress() API.
// flags: See the above enums (TDEFL_HUFFMAN_ONLY, TDEFL_WRITE_ZLIB_HEADER, etc.)
tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags);

// Compresses a block of data, consuming as much of the specified input buffer as possible, and writing as much compressed data to the specified output buffer as possible.
tdefl_status tdefl_compress(tdefl_compressor *d, const void *pIn_buf, size_t *pIn_buf_size, void *pOut_buf, size_t *pOut_buf_size, tdefl_flush flush);

// tdefl_compress_buffer() is only usable when the tdefl_init() is called with a non-NULL tdefl_put_buf_func_ptr.
// tdefl_compress_buffer() always consumes the entire input buffer.
tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, tdefl_flush flush);

tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d);
mz_uint32 tdefl_get_adler32(tdefl_compressor *d);

// Can't use tdefl_create_comp_flags_from_zip_params if MINIZ_NO_ZLIB_APIS isn't defined, because it uses some of its macros.
#ifndef MINIZ_NO_ZLIB_APIS
// Create tdefl_compress() flags given zlib-style compression parameters.
// level may range from [0,10] (where 10 is absolute max compression, but may be much slower on some files)
// window_bits may be -15 (raw deflate) or 15 (zlib)
// strategy may be either MZ_DEFAULT_STRATEGY, MZ_FILTERED, MZ_HUFFMAN_ONLY, MZ_RLE, or MZ_FIXED
mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy);
#endif // #ifndef MINIZ_NO_ZLIB_APIS

#ifdef __cplusplus
}
#endif

#endif // MINIZ_HEADER_INCLUDED

// ------------------- End of Header: Implementation follows. (If you only want the header, define MINIZ_HEADER_FILE_ONLY.)

#ifndef MINIZ_HEADER_FILE_ONLY

typedef unsigned char mz_validate_uint16[sizeof(mz_uint16)==2 ? 1 : -1];
typedef unsigned char mz_validate_uint32[sizeof(mz_uint32)==4 ? 1 : -1];
typedef unsigned char mz_validate_uint64[sizeof(mz_uint64)==8 ? 1 : -1];

#include <string.h>
#include <assert.h>

#define MZ_ASSERT(x) assert(x)

#ifdef MINIZ_NO_MALLOC
  #define MZ_MALLOC(x) NULL
  #define MZ_FREE(x) (void)x, ((void)0)
  #define MZ_REALLOC(p, x) NULL
#else
  #define MZ_MALLOC(x) malloc(x)
  #define MZ_FREE(x) free(x)
  #define MZ_REALLOC(p, x) realloc(p, x)
#endif

#define MZ_MAX(a,b) (((a)>(b))?(a):(b))
#define MZ_MIN(a,b) (((a)<(b))?(a):(b))
#define MZ_CLEAR_OBJ(obj) memset(&(obj), 0, sizeof(obj))

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
  #define MZ_READ_LE16(p) *((const mz_uint16 *)(p))
  #define MZ_READ_LE32(p) *((const mz_uint32 *)(p))
#else
  #define MZ_READ_LE16(p) ((mz_uint32)(((const mz_uint8 *)(p))[0]) | ((mz_uint32)(((const mz_uint8 *)(p))[1]) << 8U))
  #define MZ_READ_LE32(p) ((mz_uint32)(((const mz_uint8 *)(p))[0]) | ((mz_uint32)(((const mz_uint8 *)(p))[1]) << 8U) | ((mz_uint32)(((const mz_uint8 *)(p))[2]) << 16U) | ((mz_uint32)(((const mz_uint8 *)(p))[3]) << 24U))
#endif

#ifdef _MSC_VER
  #define MZ_FORCEINLINE __forceinline
#elif defined(__GNUC__)
  #define MZ_FORCEINLINE inline __attribute__((__always_inline__))
#else
  #define MZ_FORCEINLINE inline
#endif

#ifdef __cplusplus
  extern "C" {
#endif

// ------------------- zlib-style API's

mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len)
{
  mz_uint32 i, s1 = (mz_uint32)(adler & 0xffff), s2 = (mz_uint32)(adler >> 16); size_t block_len = buf_len % 5552;
  if (!ptr) return MZ_ADLER32_INIT;
  while (buf_len) {
    for (i = 0; i + 7 < block_len; i += 8, ptr += 8) {
      s1 += ptr[0], s2 += s1; s1 += ptr[1], s2 += s1; s1 += ptr[2], s2 += s1; s1 += ptr[3], s2 += s1;
      s1 += ptr[4], s2 += s1; s1 += ptr[5], s2 += s1; s1 += ptr[6], s2 += s1; s1 += ptr[7], s2 += s1;
    }
    for ( ; i < block_len; ++i) s1 += *ptr++, s2 += s1;
    s1 %= 65521U, s2 %= 65521U; buf_len -= block_len; block_len = 5552;
  }
  return (s2 << 16) + s1;
}

// Karl Malbrain's compact CRC-32. See "A compact CCITT crc16 and crc32 C implementation that balances processor cache usage against speed": http://www.geocities.com/malbrain/
mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len)
{
  static const mz_uint32 s_crc32[16] = { 0, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
    0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c };
  mz_uint32 crcu32 = (mz_uint32)crc;
  if (!ptr) return MZ_CRC32_INIT;
  crcu32 = ~crcu32; while (buf_len--) { mz_uint8 b = *ptr++; crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b & 0xF)]; crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b >> 4)]; }
  return ~crcu32;
}

void mz_free(void *p)
{
  MZ_FREE(p);
}

#ifndef MINIZ_NO_ZLIB_APIS

static void *def_alloc_func(void *opaque, size_t items, size_t size) { (void)opaque, (void)items, (void)size; return MZ_MALLOC(items * size); }
static void def_free_func(void *opaque, void *address) { (void)opaque, (void)address; MZ_FREE(address); }
static void *def_realloc_func(void *opaque, void *address, size_t items, size_t size) { (void)opaque, (void)address, (void)items, (void)size; return MZ_REALLOC(address, items * size); }

const char *mz_version(void)
{
  return MZ_VERSION;
}

int mz_deflateInit(mz_streamp pStream, int level)
{
  return mz_deflateInit2(pStream, level, MZ_DEFLATED, MZ_DEFAULT_WINDOW_BITS, 9, MZ_DEFAULT_STRATEGY);
}

int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy)
{
  tdefl_compressor *pComp;
  mz_uint comp_flags = TDEFL_COMPUTE_ADLER32 | tdefl_create_comp_flags_from_zip_params(level, window_bits, strategy);

  if (!pStream) return MZ_STREAM_ERROR;
  if ((method != MZ_DEFLATED) || ((mem_level < 1) || (mem_level > 9)) || ((window_bits != MZ_DEFAULT_WINDOW_BITS) && (-window_bits != MZ_DEFAULT_WINDOW_BITS))) return MZ_PARAM_ERROR;

  pStream->data_type = 0;
  pStream->adler = MZ_ADLER32_INIT;
  pStream->msg = NULL;
  pStream->reserved = 0;
  pStream->total_in = 0;
  pStream->total_out = 0;
  if (!pStream->zalloc) pStream->zalloc = def_alloc_func;
  if (!pStream->zfree) pStream->zfree = def_free_func;

  pComp = (tdefl_compressor *)pStream->zalloc(pStream->opaque, 1, sizeof(tdefl_compressor));
  if (!pComp)
    return MZ_MEM_ERROR;

  pStream->state = (struct mz_internal_state *)pComp;

  if (tdefl_init(pComp, NULL, NULL, comp_flags) != TDEFL_STATUS_OKAY)
  {
    mz_deflateEnd(pStream);
    return MZ_PARAM_ERROR;
  }

  return MZ_OK;
}

int mz_deflateReset(mz_streamp pStream)
{
  if ((!pStream) || (!pStream->state) || (!pStream->zalloc) || (!pStream->zfree)) return MZ_STREAM_ERROR;
  pStream->total_in = pStream->total_out = 0;
  tdefl_init((tdefl_compressor*)pStream->state, NULL, NULL, ((tdefl_compressor*)pStream->state)->m_flags);
  return MZ_OK;
}

int mz_deflate(mz_streamp pStream, int flush)
{
  size_t in_bytes, out_bytes;
  mz_ulong orig_total_in, orig_total_out;
  int mz_status = MZ_OK;

  if ((!pStream) || (!pStream->state) || (flush < 0) || (flush > MZ_FINISH) || (!pStream->next_out)) return MZ_STREAM_ERROR;
  if (!pStream->avail_out) return MZ_BUF_ERROR;

  if (flush == MZ_PARTIAL_FLUSH) flush = MZ_SYNC_FLUSH;

  if (((tdefl_compressor*)pStream->state)->m_prev_return_status == TDEFL_STATUS_DONE)
    return (flush == MZ_FINISH) ? MZ_STREAM_END : MZ_BUF_ERROR;

  orig_total_in = pStream->total_in; orig_total_out = pStream->total_out;
  for ( ; ; )
  {
    tdefl_status defl_status;
    in_bytes = pStream->avail_in; out_bytes = pStream->avail_out;

    defl_status = tdefl_compress((tdefl_compressor*)pStream->state, pStream->next_in, &in_bytes, pStream->next_out, &out_bytes, (tdefl_flush)flush);
    pStream->next_in += (mz_uint)in_bytes; pStream->avail_in -= (mz_uint)in_bytes;
    pStream->total_in += (mz_uint)in_bytes; pStream->adler = tdefl_get_adler32((tdefl_compressor*)pStream->state);

    pStream->next_out += (mz_uint)out_bytes; pStream->avail_out -= (mz_uint)out_bytes;
    pStream->total_out += (mz_uint)out_bytes;

    if (defl_status < 0)
    {
      mz_status = MZ_STREAM_ERROR;
      break;
    }
    else if (defl_status == TDEFL_STATUS_DONE)
    {
      mz_status = MZ_STREAM_END;
      break;
    }
    else if (!pStream->avail_out)
      break;
    else if ((!pStream->avail_in) && (flush != MZ_FINISH))
    {
      if ((flush) || (pStream->total_in != orig_total_in) || (pStream->total_out != orig_total_out))
        break;
      return MZ_BUF_ERROR; // Can't make forward progress without some input.
    }
  }
  return mz_status;
}

int mz_deflateEnd(mz_streamp pStream)
{
  if (!pStream) return MZ_STREAM_ERROR;
  if (pStream->state)
  {
    pStream->zfree(pStream->opaque, pStream->state);
    pStream->state = NULL;
  }
  return MZ_OK;
}

mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len)
{
  (void)pStream;
  // This is really over conservative. (And lame, but it's actually pretty tricky to compute a true upper bound given the way tdefl's blocking works.)
  return MZ_MAX(128 + (source_len * 110) / 100, 128 + source_len + ((source_len / (31 * 1024)) + 1) * 5);
}

int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len, int level)
{
  int status;
  mz_stream stream;
  memset(&stream, 0, sizeof(stream));

  // In case mz_ulong is 64-bits (argh I hate longs).
  if ((source_len | *pDest_len) > 0xFFFFFFFFU) return MZ_PARAM_ERROR;

  stream.next_in = pSource;
  stream.avail_in = (mz_uint32)source_len;
  stream.next_out = pDest;
  stream.avail_out = (mz_uint32)*pDest_len;

  status = mz_deflateInit(&stream, level);
  if (status != MZ_OK) return status;

  status = mz_deflate(&stream, MZ_FINISH);
  if (status != MZ_STREAM_END)
  {
    mz_deflateEnd(&stream);
    return (status == MZ_OK) ? MZ_BUF_ERROR : status;
  }

  *pDest_len = stream.total_out;
  return mz_deflateEnd(&stream);
}

int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len)
{
  return mz_compress2(pDest, pDest_len, pSource, source_len, MZ_DEFAULT_COMPRESSION);
}

mz_ulong mz_compressBound(mz_ulong source_len)
{
  return mz_deflateBound(NULL, source_len);
}

typedef struct
{
  tinfl_decompressor m_decomp;
  mz_uint m_dict_ofs, m_dict_avail, m_first_call, m_has_flushed; int m_window_bits;
  mz_uint8 m_dict[TINFL_LZ_DICT_SIZE];
  tinfl_status m_last_status;
} inflate_state;

int mz_inflateInit2(mz_streamp pStream, int window_bits)
{
  inflate_state *pDecomp;
  if (!pStream) return MZ_STREAM_ERROR;
  if ((window_bits != MZ_DEFAULT_WINDOW_BITS) && (-window_bits != MZ_DEFAULT_WINDOW_BITS)) return MZ_PARAM_ERROR;

  pStream->data_type = 0;
  pStream->adler = 0;
  pStream->msg = NULL;
  pStream->total_in = 0;
  pStream->total_out = 0;
  pStream->reserved = 0;
  if (!pStream->zalloc) pStream->zalloc = def_alloc_func;
  if (!pStream->zfree) pStream->zfree = def_free_func;

  pDecomp = (inflate_state*)pStream->zalloc(pStream->opaque, 1, sizeof(inflate_state));
  if (!pDecomp) return MZ_MEM_ERROR;

  pStream->state = (struct mz_internal_state *)pDecomp;

  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_inflateInit(mz_streamp pStream)
{
   return mz_inflateInit2(pStream, MZ_DEFAULT_WINDOW_BITS);
}

int mz_inflate(mz_streamp pStream, int flush)
{
  inflate_state* pState;
  mz_uint n, first_call, decomp_flags = TINFL_FLAG_COMPUTE_ADLER32;
  size_t in_bytes, out_bytes, orig_avail_in;
  tinfl_status status;

  if ((!pStream) || (!pStream->state)) return MZ_STREAM_ERROR;
  if (flush == MZ_PARTIAL_FLUSH) flush = MZ_SYNC_FLUSH;
  if ((flush) && (flush != MZ_SYNC_FLUSH) && (flush != MZ_FINISH)) return MZ_STREAM_ERROR;

  pState = (inflate_state*)pStream->state;
  if (pState->m_window_bits > 0) decomp_flags |= TINFL_FLAG_PARSE_ZLIB_HEADER;
  orig_avail_in = pStream->avail_in;

  first_call = pState->m_first_call; pState->m_first_call = 0;
  if (pState->m_last_status < 0) return MZ_DATA_ERROR;

  if (pState->m_has_flushed && (flush != MZ_FINISH)) return MZ_STREAM_ERROR;
  pState->m_has_flushed |= (flush == MZ_FINISH);

  if ((flush == MZ_FINISH) && (first_call))
  {
    // MZ_FINISH on the first call implies that the input and output buffers are large enough to hold the entire compressed/decompressed file.
    decomp_flags |= TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF;
    in_bytes = pStream->avail_in; out_bytes = pStream->avail_out;
    status = tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pStream->next_out, pStream->next_out, &out_bytes, decomp_flags);
    pState->m_last_status = status;
    pStream->next_in += (mz_uint)in_bytes; pStream->avail_in -= (mz_uint)in_bytes; pStream->total_in += (mz_uint)in_bytes;
    pStream->adler = tinfl_get_adler32(&pState->m_decomp);
    pStream->next_out += (mz_uint)out_bytes; pStream->avail_out -= (mz_uint)out_bytes; pStream->total_out += (mz_uint)out_bytes;

    if (status < 0)
      return MZ_DATA_ERROR;
    else if (status != TINFL_STATUS_DONE)
    {
      pState->m_last_status = TINFL_STATUS_FAILED;
      return MZ_BUF_ERROR;
    }
    return MZ_STREAM_END;
  }
  // flush != MZ_FINISH then we must assume there's more input.
  if (flush != MZ_FINISH) decomp_flags |= TINFL_FLAG_HAS_MORE_INPUT;

  if (pState->m_dict_avail)
  {
    n = MZ_MIN(pState->m_dict_avail, pStream->avail_out);
    memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
    pStream->next_out += n; pStream->avail_out -= n; pStream->total_out += n;
    pState->m_dict_avail -= n; pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1);
    return ((pState->m_last_status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) ? MZ_STREAM_END : MZ_OK;
  }

  for ( ; ; )
  {
    in_bytes = pStream->avail_in;
    out_bytes = TINFL_LZ_DICT_SIZE - pState->m_dict_ofs;

    status = tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pState->m_dict, pState->m_dict + pState->m_dict_ofs, &out_bytes, decomp_flags);
    pState->m_last_status = status;

    pStream->next_in += (mz_uint)in_bytes; pStream->avail_in -= (mz_uint)in_bytes;
    pStream->total_in += (mz_uint)in_bytes; pStream->adler = tinfl_get_adler32(&pState->m_decomp);

    pState->m_dict_avail = (mz_uint)out_bytes;

    n = MZ_MIN(pState->m_dict_avail, pStream->avail_out);
    memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
    pStream->next_out += n; pStream->avail_out -= n; pStream->total_out += n;
    pState->m_dict_avail -= n; pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1);

    if (status < 0)
       return MZ_DATA_ERROR; // Stream is corrupted (there could be some uncompressed data left in the output dictionary - oh well).
    else if ((status == TINFL_STATUS_NEEDS_MORE_INPUT) && (!orig_avail_in))
      return MZ_BUF_ERROR; // Signal caller that we can't make forward progress without supplying more input or by setting flush to MZ_FINISH.
    else if (flush == MZ_FINISH)
    {
       // The output buffer MUST be large to hold the remaining uncompressed data when flush==MZ_FINISH.
       if (status == TINFL_STATUS_DONE)
          return pState->m_dict_avail ? MZ_BUF_ERROR : MZ_STREAM_END;
       // status here must be TINFL_STATUS_HAS_MORE_OUTPUT, which means there's at least 1 more byte on the way. If there's no more room left in the output buffer then something is wrong.
       else if (!pStream->avail_out)
          return MZ_BUF_ERROR;
    }
    else if ((status == TINFL_STATUS_DONE) || (!pStream->avail_in) || (!pStream->avail_out) || (pState->m_dict_avail))
      break;
  }

  return ((status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) ? MZ_STREAM_END : MZ_OK;
}

int mz_inflateEnd(mz_streamp pStream)
{
  if (!pStream)
    return MZ_STREAM_ERROR;
  if (pStream->state)
  {
    pStream->zfree(pStream->opaque, pStream->state);
    pStream->state = NULL;
  }
  return MZ_OK;
}

int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len)
{
  mz_stream stream;
  int status;
  memset(&stream, 0, sizeof(stream));

  // In case mz_ulong is 64-bits (argh I hate longs).
  if ((source_len | *pDest_len) > 0xFFFFFFFFU) return MZ_PARAM_ERROR;

  stream.next_in = pSource;
  stream.avail_in = (mz_uint32)source_len;
  stream.next_out = pDest;
  stream.avail_out = (mz_uint32)*pDest_len;

  status = mz_inflateInit(&stream);
  if (status != MZ_OK)
    return status;

  status = mz_inflate(&stream, MZ_FINISH);
  if (status != MZ_STREAM_END)
  {
    mz_inflateEnd(&stream);
    return ((status == MZ_BUF_ERROR) && (!stream.avail_in)) ? MZ_DATA_ERROR : status;
  }
  *pDest_len = stream.total_out;

  return mz_inflateEnd(&stream);
}

const char *mz_error(int err)
{
  static struct { int m_err; const char *m_pDesc; } s_error_descs[] =
  {
    { MZ_OK, "" }, { MZ_STREAM_END, "stream end" }, { MZ_NEED_DICT, "need dictionary" }, { MZ_ERRNO, "file error" }, { MZ_STREAM_ERROR, "stream error" },
    { MZ_DATA_ERROR, "data error" }, { MZ_MEM_ERROR, "out of memory" }, { MZ_BUF_ERROR, "buf error" }, { MZ_VERSION_ERROR, "version error" }, { MZ_PARAM_ERROR, "parameter error" }
  };
  mz_uint i; for (i = 0; i < sizeof(s_error_descs) / sizeof(s_error_descs[0]); ++i) if (s_error_descs[i].m_err == err) return s_error_descs[i].m_pDesc;
  return NULL;
}

#endif //MINIZ_NO_ZLIB_APIS

// ------------------- Low-level Decompression (completely independent from all compression API's)

#define TINFL_MEMCPY(d, s, l) memcpy(d, s, l)
#define TINFL_MEMSET(p, c, l) memset(p, c, l)

#define TINFL_CR_BEGIN switch(r->m_state) { case 0:
#define TINFL_CR_RETURN(state_index, result) do { status = result; r->m_state = state_index; goto common_exit; case state_index:; } MZ_MACRO_END
#define TINFL_CR_RETURN_FOREVER(state_index, result) do { for ( ; ; ) { TINFL_CR_RETURN(state_index, result); } } MZ_MACRO_END
#define TINFL_CR_FINISH }

// TODO: If the caller has indicated that there's no more input, and we attempt to read beyond the input buf, then something is wrong with the input because the inflator never
// reads ahead more than it needs to. Currently TINFL_GET_BYTE() pads the end of the stream with 0's in this scenario.
#define TINFL_GET_BYTE(state_index, c) do { \
  if (pIn_buf_cur >= pIn_buf_end) { \
    for ( ; ; ) { \
      if (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) { \
        TINFL_CR_RETURN(state_index, TINFL_STATUS_NEEDS_MORE_INPUT); \
        if (pIn_buf_cur < pIn_buf_end) { \
          c = *pIn_buf_cur++; \
          break; \
        } \
      } else { \
        c = 0; \
        break; \
      } \
    } \
  } else c = *pIn_buf_cur++; } MZ_MACRO_END

#define TINFL_NEED_BITS(state_index, n) do { mz_uint c; TINFL_GET_BYTE(state_index, c); bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); num_bits += 8; } while (num_bits < (mz_uint)(n))
#define TINFL_SKIP_BITS(state_index, n) do { if (num_bits < (mz_uint)(n)) { TINFL_NEED_BITS(state_index, n); } bit_buf >>= (n); num_bits -= (n); } MZ_MACRO_END
#define TINFL_GET_BITS(state_index, b, n) do { if (num_bits < (mz_uint)(n)) { TINFL_NEED_BITS(state_index, n); } b = bit_buf & ((1 << (n)) - 1); bit_buf >>= (n); num_bits -= (n); } MZ_MACRO_END

// TINFL_HUFF_BITBUF_FILL() is only used rarely, when the number of bytes remaining in the input buffer falls below 2.
// It reads just enough bytes from the input stream that are needed to decode the next Huffman code (and absolutely no more). It works by trying to fully decode a
// Huffman code by using whatever bits are currently present in the bit buffer. If this fails, it reads another byte, and tries again until it succeeds or until the
// bit buffer contains >=15 bits (deflate's max. Huffman code size).
#define TINFL_HUFF_BITBUF_FILL(state_index, pHuff) \
  do { \
    temp = (pHuff)->m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]; \
    if (temp >= 0) { \
      code_len = temp >> 9; \
      if ((code_len) && (num_bits >= code_len)) \
      break; \
    } else if (num_bits > TINFL_FAST_LOOKUP_BITS) { \
       code_len = TINFL_FAST_LOOKUP_BITS; \
       do { \
          temp = (pHuff)->m_tree[~temp + ((bit_buf >> code_len++) & 1)]; \
       } while ((temp < 0) && (num_bits >= (code_len + 1))); if (temp >= 0) break; \
    } TINFL_GET_BYTE(state_index, c); bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); num_bits += 8; \
  } while (num_bits < 15);

// TINFL_HUFF_DECODE() decodes the next Huffman coded symbol. It's more complex than you would initially expect because the zlib API expects the decompressor to never read
// beyond the final byte of the deflate stream. (In other words, when this macro wants to read another byte from the input, it REALLY needs another byte in order to fully
// decode the next Huffman code.) Handling this properly is particularly important on raw deflate (non-zlib) streams, which aren't followed by a byte aligned adler-32.
// The slow path is only executed at the very end of the input buffer.
#define TINFL_HUFF_DECODE(state_index, sym, pHuff) do { \
  int temp; mz_uint code_len, c; \
  if (num_bits < 15) { \
    if ((pIn_buf_end - pIn_buf_cur) < 2) { \
       TINFL_HUFF_BITBUF_FILL(state_index, pHuff); \
    } else { \
       bit_buf |= (((tinfl_bit_buf_t)pIn_buf_cur[0]) << num_bits) | (((tinfl_bit_buf_t)pIn_buf_cur[1]) << (num_bits + 8)); pIn_buf_cur += 2; num_bits += 16; \
    } \
  } \
  if ((temp = (pHuff)->m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0) \
    code_len = temp >> 9, temp &= 511; \
  else { \
    code_len = TINFL_FAST_LOOKUP_BITS; do { temp = (pHuff)->m_tree[~temp + ((bit_buf >> code_len++) & 1)]; } while (temp < 0); \
  } sym = temp; bit_buf >>= code_len; num_bits -= code_len; } MZ_MACRO_END

tinfl_status tinfl_decompress(tinfl_decompressor *r, const mz_uint8 *pIn_buf_next, size_t *pIn_buf_size, mz_uint8 *pOut_buf_start, mz_uint8 *pOut_buf_next, size_t *pOut_buf_size, const mz_uint32 decomp_flags)
{
  static const int s_length_base[31] = { 3,4,5,6,7,8,9,10,11,13, 15,17,19,23,27,31,35,43,51,59, 67,83,99,115,131,163,195,227,258,0,0 };
  static const int s_length_extra[31]= { 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 };
  static const int s_dist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, 257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0};
  static const int s_dist_extra[32] = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
  static const mz_uint8 s_length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 };
  static const int s_min_table_sizes[3] = { 257, 1, 4 };

  tinfl_status status = TINFL_STATUS_FAILED; mz_uint32 num_bits, dist, counter, num_extra; tinfl_bit_buf_t bit_buf;
  const mz_uint8 *pIn_buf_cur = pIn_buf_next, *const pIn_buf_end = pIn_buf_next + *pIn_buf_size;
  mz_uint8 *pOut_buf_cur = pOut_buf_next, *const pOut_buf_end = pOut_buf_next + *pOut_buf_size;
  size_t out_buf_size_mask = (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF) ? (size_t)-1 : ((pOut_buf_next - pOut_buf_start) + *pOut_buf_size) - 1, dist_from_out_buf_start;

  // Ensure the output buffer's size is a power of 2, unless the output buffer is large enough to hold the entire output file (in which case it doesn't matter).
  if (((out_buf_size_mask + 1) & out_buf_size_mask) || (pOut_buf_next < pOut_buf_start)) { *pIn_buf_size = *pOut_buf_size = 0; return TINFL_STATUS_BAD_PARAM; }

  num_bits = r->m_num_bits; bit_buf = r->m_bit_buf; dist = r->m_dist; counter = r->m_counter; num_extra = r->m_num_extra; dist_from_out_buf_start = r->m_dist_from_out_buf_start;
  TINFL_CR_BEGIN

  bit_buf = num_bits = dist = counter = num_extra = r->m_zhdr0 = r->m_zhdr1 = 0; r->m_z_adler32 = r->m_check_adler32 = 1;
  if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER)
  {
    TINFL_GET_BYTE(1, r->m_zhdr0); TINFL_GET_BYTE(2, r->m_zhdr1);
    counter = (((r->m_zhdr0 * 256 + r->m_zhdr1) % 31 != 0) || (r->m_zhdr1 & 32) || ((r->m_zhdr0 & 15) != 8));
    if (!(decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)) counter |= (((1U << (8U + (r->m_zhdr0 >> 4))) > 32768U) || ((out_buf_size_mask + 1) < (size_t)(1U << (8U + (r->m_zhdr0 >> 4)))));
    if (counter) { TINFL_CR_RETURN_FOREVER(36, TINFL_STATUS_FAILED); }
  }

  do
  {
    TINFL_GET_BITS(3, r->m_final, 3); r->m_type = r->m_final >> 1;
    if (r->m_type == 0)
    {
      TINFL_SKIP_BITS(5, num_bits & 7);
      for (counter = 0; counter < 4; ++counter) { if (num_bits) TINFL_GET_BITS(6, r->m_raw_header[counter], 8); else TINFL_GET_BYTE(7, r->m_raw_header[counter]); }
      if ((counter = (r->m_raw_header[0] | (r->m_raw_header[1] << 8))) != (mz_uint)(0xFFFF ^ (r->m_raw_header[2] | (r->m_raw_header[3] << 8)))) { TINFL_CR_RETURN_FOREVER(39, TINFL_STATUS_FAILED); }
      while ((counter) && (num_bits))
      {
        TINFL_GET_BITS(51, dist, 8);
        while (pOut_buf_cur >= pOut_buf_end) { TINFL_CR_RETURN(52, TINFL_STATUS_HAS_MORE_OUTPUT); }
        *pOut_buf_cur++ = (mz_uint8)dist;
        counter--;
      }
      while (counter)
      {
        size_t n; while (pOut_buf_cur >= pOut_buf_end) { TINFL_CR_RETURN(9, TINFL_STATUS_HAS_MORE_OUTPUT); }
        while (pIn_buf_cur >= pIn_buf_end)
        {
          if (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT)
          {
            TINFL_CR_RETURN(38, TINFL_STATUS_NEEDS_MORE_INPUT);
          }
          else
          {
            TINFL_CR_RETURN_FOREVER(40, TINFL_STATUS_FAILED);
          }
        }
        n = MZ_MIN(MZ_MIN((size_t)(pOut_buf_end - pOut_buf_cur), (size_t)(pIn_buf_end - pIn_buf_cur)), counter);
        TINFL_MEMCPY(pOut_buf_cur, pIn_buf_cur, n); pIn_buf_cur += n; pOut_buf_cur += n; counter -= (mz_uint)n;
      }
    }
    else if (r->m_type == 3)
    {
      TINFL_CR_RETURN_FOREVER(10, TINFL_STATUS_FAILED);
    }
    else
    {
      if (r->m_type == 1)
      {
        mz_uint8 *p = r->m_tables[0].m_code_size; mz_uint i;
        r->m_table_sizes[0] = 288; r->m_table_sizes[1] = 32; TINFL_MEMSET(r->m_tables[1].m_code_size, 5, 32);
        for ( i = 0; i <= 143; ++i) *p++ = 8; for ( ; i <= 255; ++i) *p++ = 9; for ( ; i <= 279; ++i) *p++ = 7; for ( ; i <= 287; ++i) *p++ = 8;
      }
      else
      {
        for (counter = 0; counter < 3; counter++) { TINFL_GET_BITS(11, r->m_table_sizes[counter], "\05\05\04"[counter]); r->m_table_sizes[counter] += s_min_table_sizes[counter]; }
        MZ_CLEAR_OBJ(r->m_tables[2].m_code_size); for (counter = 0; counter < r->m_table_sizes[2]; counter++) { mz_uint s; TINFL_GET_BITS(14, s, 3); r->m_tables[2].m_code_size[s_length_dezigzag[counter]] = (mz_uint8)s; }
        r->m_table_sizes[2] = 19;
      }
      for ( ; (int)r->m_type >= 0; r->m_type--)
      {
        int tree_next, tree_cur; tinfl_huff_table *pTable;
        mz_uint i, j, used_syms, total, sym_index, next_code[17], total_syms[16]; pTable = &r->m_tables[r->m_type]; MZ_CLEAR_OBJ(total_syms); MZ_CLEAR_OBJ(pTable->m_look_up); MZ_CLEAR_OBJ(pTable->m_tree);
        for (i = 0; i < r->m_table_sizes[r->m_type]; ++i) total_syms[pTable->m_code_size[i]]++;
        used_syms = 0, total = 0; next_code[0] = next_code[1] = 0;
        for (i = 1; i <= 15; ++i) { used_syms += total_syms[i]; next_code[i + 1] = (total = ((total + total_syms[i]) << 1)); }
        if ((65536 != total) && (used_syms > 1))
        {
          TINFL_CR_RETURN_FOREVER(35, TINFL_STATUS_FAILED);
        }
        for (tree_next = -1, sym_index = 0; sym_index < r->m_table_sizes[r->m_type]; ++sym_index)
        {
          mz_uint rev_code = 0, l, cur_code, code_size = pTable->m_code_size[sym_index]; if (!code_size) continue;
          cur_code = next_code[code_size]++; for (l = code_size; l > 0; l--, cur_code >>= 1) rev_code = (rev_code << 1) | (cur_code & 1);
          if (code_size <= TINFL_FAST_LOOKUP_BITS) { mz_int16 k = (mz_int16)((code_size << 9) | sym_index); while (rev_code < TINFL_FAST_LOOKUP_SIZE) { pTable->m_look_up[rev_code] = k; rev_code += (1 << code_size); } continue; }
          if (0 == (tree_cur = pTable->m_look_up[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)])) { pTable->m_look_up[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)] = (mz_int16)tree_next; tree_cur = tree_next; tree_next -= 2; }
          rev_code >>= (TINFL_FAST_LOOKUP_BITS - 1);
          for (j = code_size; j > (TINFL_FAST_LOOKUP_BITS + 1); j--)
          {
            tree_cur -= ((rev_code >>= 1) & 1);
            if (!pTable->m_tree[-tree_cur - 1]) { pTable->m_tree[-tree_cur - 1] = (mz_int16)tree_next; tree_cur = tree_next; tree_next -= 2; } else tree_cur = pTable->m_tree[-tree_cur - 1];
          }
          tree_cur -= ((rev_code >>= 1) & 1); pTable->m_tree[-tree_cur - 1] = (mz_int16)sym_index;
        }
        if (r->m_type == 2)
        {
          for (counter = 0; counter < (r->m_table_sizes[0] + r->m_table_sizes[1]); )
          {
            mz_uint s; TINFL_HUFF_DECODE(16, dist, &r->m_tables[2]); if (dist < 16) { r->m_len_codes[counter++] = (mz_uint8)dist; continue; }
            if ((dist == 16) && (!counter))
            {
              TINFL_CR_RETURN_FOREVER(17, TINFL_STATUS_FAILED);
            }
            num_extra = "\02\03\07"[dist - 16]; TINFL_GET_BITS(18, s, num_extra); s += "\03\03\013"[dist - 16];
            TINFL_MEMSET(r->m_len_codes + counter, (dist == 16) ? r->m_len_codes[counter - 1] : 0, s); counter += s;
          }
          if ((r->m_table_sizes[0] + r->m_table_sizes[1]) != counter)
          {
            TINFL_CR_RETURN_FOREVER(21, TINFL_STATUS_FAILED);
          }
          TINFL_MEMCPY(r->m_tables[0].m_code_size, r->m_len_codes, r->m_table_sizes[0]); TINFL_MEMCPY(r->m_tables[1].m_code_size, r->m_len_codes + r->m_table_sizes[0], r->m_table_sizes[1]);
        }
      }
      for ( ; ; )
      {
        mz_uint8 *pSrc;
        for ( ; ; )
        {
          if (((pIn_buf_end - pIn_buf_cur) < 4) || ((pOut_buf_end - pOut_buf_cur) < 2))
          {
            TINFL_HUFF_DECODE(23, counter, &r->m_tables[0]);
            if (counter >= 256)
              break;
            while (pOut_buf_cur >= pOut_buf_end) { TINFL_CR_RETURN(24, TINFL_STATUS_HAS_MORE_OUTPUT); }
            *pOut_buf_cur++ = (mz_uint8)counter;
          }
          else
          {
            int sym2; mz_uint code_len;
#if TINFL_USE_64BIT_BITBUF
            if (num_bits < 30) { bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE32(pIn_buf_cur)) << num_bits); pIn_buf_cur += 4; num_bits += 32; }
#else
            if (num_bits < 15) { bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits); pIn_buf_cur += 2; num_bits += 16; }
#endif
            if ((sym2 = r->m_tables[0].m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0)
              code_len = sym2 >> 9;
            else
            {
              code_len = TINFL_FAST_LOOKUP_BITS; do { sym2 = r->m_tables[0].m_tree[~sym2 + ((bit_buf >> code_len++) & 1)]; } while (sym2 < 0);
            }
            counter = sym2; bit_buf >>= code_len; num_bits -= code_len;
            if (counter & 256)
              break;

#if !TINFL_USE_64BIT_BITBUF
            if (num_bits < 15) { bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits); pIn_buf_cur += 2; num_bits += 16; }
#endif
            if ((sym2 = r->m_tables[0].m_look_up[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0)
              code_len = sym2 >> 9;
            else
            {
              code_len = TINFL_FAST_LOOKUP_BITS; do { sym2 = r->m_tables[0].m_tree[~sym2 + ((bit_buf >> code_len++) & 1)]; } while (sym2 < 0);
            }
            bit_buf >>= code_len; num_bits -= code_len;

            pOut_buf_cur[0] = (mz_uint8)counter;
            if (sym2 & 256)
            {
              pOut_buf_cur++;
              counter = sym2;
              break;
            }
            pOut_buf_cur[1] = (mz_uint8)sym2;
            pOut_buf_cur += 2;
          }
        }
        if ((counter &= 511) == 256) break;

        num_extra = s_length_extra[counter - 257]; counter = s_length_base[counter - 257];
        if (num_extra) { mz_uint extra_bits; TINFL_GET_BITS(25, extra_bits, num_extra); counter += extra_bits; }

        TINFL_HUFF_DECODE(26, dist, &r->m_tables[1]);
        num_extra = s_dist_extra[dist]; dist = s_dist_base[dist];
        if (num_extra) { mz_uint extra_bits; TINFL_GET_BITS(27, extra_bits, num_extra); dist += extra_bits; }

        dist_from_out_buf_start = pOut_buf_cur - pOut_buf_start;
        if ((dist > dist_from_out_buf_start) && (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF))
        {
          TINFL_CR_RETURN_FOREVER(37, TINFL_STATUS_FAILED);
        }

        pSrc = pOut_buf_start + ((dist_from_out_buf_start - dist) & out_buf_size_mask);

        if ((MZ_MAX(pOut_buf_cur, pSrc) + counter) > pOut_buf_end)
        {
          while (counter--)
          {
            while (pOut_buf_cur >= pOut_buf_end) { TINFL_CR_RETURN(53, TINFL_STATUS_HAS_MORE_OUTPUT); }
            *pOut_buf_cur++ = pOut_buf_start[(dist_from_out_buf_start++ - dist) & out_buf_size_mask];
          }
          continue;
        }
#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES
        else if ((counter >= 9) && (counter <= dist))
        {
          const mz_uint8 *pSrc_end = pSrc + (counter & ~7);
          do
          {
            ((mz_uint32 *)pOut_buf_cur)[0] = ((const mz_uint32 *)pSrc)[0];
            ((mz_uint32 *)pOut_buf_cur)[1] = ((const mz_uint32 *)pSrc)[1];
            pOut_buf_cur += 8;
          } while ((pSrc += 8) < pSrc_end);
          if ((counter &= 7) < 3)
          {
            if (counter)
            {
              pOut_buf_cur[0] = pSrc[0];
              if (counter > 1)
                pOut_buf_cur[1] = pSrc[1];
              pOut_buf_cur += counter;
            }
            continue;
          }
        }
#endif
        do
        {
          pOut_buf_cur[0] = pSrc[0];
          pOut_buf_cur[1] = pSrc[1];
          pOut_buf_cur[2] = pSrc[2];
          pOut_buf_cur += 3; pSrc += 3;
        } while ((int)(counter -= 3) > 2);
        if ((int)counter > 0)
        {
          pOut_buf_cur[0] = pSrc[0];
          if ((int)counter > 1)
            pOut_buf_cur[1] = pSrc[1];
          pOut_buf_cur += counter;
        }
      }
    }
  } while (!(r->m_final & 1));
  if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER)
  {
    TINFL_SKIP_BITS(32, num_bits & 7); for (counter = 0; counter < 4; ++counter) { mz_uint s; if (num_bits) TINFL_GET_BITS(41, s, 8); else TINFL_GET_BYTE(42, s); r->m_z_adler32 = (r->m_z_adler32 << 8) | s; }
  }
  TINFL_CR_RETURN_FOREVER(34, TINFL_STATUS_DONE);
  TINFL_CR_FINISH

common_exit:
  r->m_num_bits = num_bits; r->m_bit_buf = bit_buf; r->m_dist = dist; r->m_counter = counter; r->m_num_extra = num_extra; r->m_dist_from_out_buf_start = dist_from_out_buf_start;
  *pIn_buf_size = pIn_buf_cur - pIn_buf_next; *pOut_buf_size = pOut_buf_cur - pOut_buf_next;
  if ((decomp_flags & (TINFL_FLAG_PARSE_ZLIB_HEADER | TINFL_FLAG_COMPUTE_ADLER32)) && (status >= 0))
  {
    const mz_uint8 *ptr = pOut_buf_next; size_t buf_len = *pOut_buf_size;
    mz_uint32 i, s1 = r->m_check_adler32 & 0xffff, s2 = r->m_check_adler32 >> 16; size_t block_len = buf_len % 5552;
    while (buf_len)
    {
      for (i = 0; i + 7 < block_len; i += 8, ptr += 8)
      {
        s1 += ptr[0], s2 += s1; s1 += ptr[1], s2 += s1; s1 += ptr[2], s2 += s1; s1 += ptr[3], s2 += s1;
        s1 += ptr[4], s2 += s1; s1 += ptr[5], s2 += s1; s1 += ptr[6], s2 += s1; s1 += ptr[7], s2 += s1;
      }
      for ( ; i < block_len; ++i) s1 += *ptr++, s2 += s1;
      s1 %= 65521U, s2 %= 65521U; buf_len -= block_len; block_len = 5552;
    }
    r->m_check_adler32 = (s2 << 16) + s1; if ((status == TINFL_STATUS_DONE) && (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) && (r->m_check_adler32 != r->m_z_adler32)) status = TINFL_STATUS_ADLER32_MISMATCH;
  }
  return status;
}

// Higher level helper functions.
void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags)
{
  tinfl_decompressor decomp; void *pBuf = NULL, *pNew_buf; size_t src_buf_ofs = 0, out_buf_capacity = 0;
  *pOut_len = 0;
  tinfl_init(&decomp);
  for ( ; ; )
  {
    size_t src_buf_size = src_buf_len - src_buf_ofs, dst_buf_size = out_buf_capacity - *pOut_len, new_out_buf_capacity;
    tinfl_status status = tinfl_decompress(&decomp, (const mz_uint8*)pSrc_buf + src_buf_ofs, &src_buf_size, (mz_uint8*)pBuf, pBuf ? (mz_uint8*)pBuf + *pOut_len : NULL, &dst_buf_size,
      (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
    if ((status < 0) || (status == TINFL_STATUS_NEEDS_MORE_INPUT))
    {
      MZ_FREE(pBuf); *pOut_len = 0; return NULL;
    }
    src_buf_ofs += src_buf_size;
    *pOut_len += dst_buf_size;
    if (status == TINFL_STATUS_DONE) break;
    new_out_buf_capacity = out_buf_capacity * 2; if (new_out_buf_capacity < 128) new_out_buf_capacity = 128;
    pNew_buf = MZ_REALLOC(pBuf, new_out_buf_capacity);
    if (!pNew_buf)
    {
      MZ_FREE(pBuf); *pOut_len = 0; return NULL;
    }
    pBuf = pNew_buf; out_buf_capacity = new_out_buf_capacity;
  }
  return pBuf;
}

size_t tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags)
{
  tinfl_decompressor decomp; tinfl_status status; tinfl_init(&decomp);
  status = tinfl_decompress(&decomp, (const mz_uint8*)pSrc_buf, &src_buf_len, (mz_uint8*)pOut_buf, (mz_uint8*)pOut_buf, &out_buf_len, (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
  return (status != TINFL_STATUS_DONE) ? TINFL_DECOMPRESS_MEM_TO_MEM_FAILED : out_buf_len;
}

int tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size, tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)
{
  int result = 0;
  tinfl_decompressor decomp;
  mz_uint8 *pDict = (mz_uint8*)MZ_MALLOC(TINFL_LZ_DICT_SIZE); size_t in_buf_ofs = 0, dict_ofs = 0;
  if (!pDict)
    return TINFL_STATUS_FAILED;
  tinfl_init(&decomp);
  for ( ; ; )
  {
    size_t in_buf_size = *pIn_buf_size - in_buf_ofs, dst_buf_size = TINFL_LZ_DICT_SIZE - dict_ofs;
    tinfl_status status = tinfl_decompress(&decomp, (const mz_uint8*)pIn_buf + in_buf_ofs, &in_buf_size, pDict, pDict + dict_ofs, &dst_buf_size,
      (flags & ~(TINFL_FLAG_HAS_MORE_INPUT | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)));
    in_buf_ofs += in_buf_size;
    if ((dst_buf_size) && (!(*pPut_buf_func)(pDict + dict_ofs, (int)dst_buf_size, pPut_buf_user)))
      break;
    if (status != TINFL_STATUS_HAS_MORE_OUTPUT)
    {
      result = (status == TINFL_STATUS_DONE);
      break;
    }
    dict_ofs = (dict_ofs + dst_buf_size) & (TINFL_LZ_DICT_SIZE - 1);
  }
  MZ_FREE(pDict);
  *pIn_buf_size = in_buf_ofs;
  return result;
}

// ------------------- Low-level Compression (independent from all decompression API's)

// Purposely making these tables static for faster init and thread safety.
static const mz_uint16 s_tdefl_len_sym[256] = {
  257,258,259,260,261,262,263,264,265,265,266,266,267,267,268,268,269,269,269,269,270,270,270,270,271,271,271,271,272,272,272,272,
  273,273,273,273,273,273,273,273,274,274,274,274,274,274,274,274,275,275,275,275,275,275,275,275,276,276,276,276,276,276,276,276,
  277,277,277,277,277,277,277,277,277,277,277,277,277,277,277,277,278,278,278,278,278,278,278,278,278,278,278,278,278,278,278,278,
  279,279,279,279,279,279,279,279,279,279,279,279,279,279,279,279,280,280,280,280,280,280,280,280,280,280,280,280,280,280,280,280,
  281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,281,
  282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,282,
  283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,283,
  284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,284,285 };

static const mz_uint8 s_tdefl_len_extra[256] = {
  0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
  4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
  5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
  5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,0 };

static const mz_uint8 s_tdefl_small_dist_sym[512] = {
  0,1,2,3,4,4,5,5,6,6,6,6,7,7,7,7,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,
  11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,13,
  13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14,14,14,14,14,14,14,14,14,14,14,14,
  14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,
  14,14,14,14,14,14,14,14,14,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,
  15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,16,16,16,16,16,16,16,16,16,16,16,16,16,
  16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
  16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
  16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
  17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
  17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
  17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17 };

static const mz_uint8 s_tdefl_small_dist_extra[512] = {
  0,0,0,0,1,1,1,1,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,
  5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
  6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
  6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
  7,7,7,7,7,7,7,7 };

static const mz_uint8 s_tdefl_large_dist_sym[128] = {
  0,0,18,19,20,20,21,21,22,22,22,22,23,23,23,23,24,24,24,24,24,24,24,24,25,25,25,25,25,25,25,25,26,26,26,26,26,26,26,26,26,26,26,26,
  26,26,26,26,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,
  28,28,28,28,28,28,28,28,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29 };

static const mz_uint8 s_tdefl_large_dist_extra[128] = {
  0,0,8,8,9,9,9,9,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,
  12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,
  13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,13 };

// Radix sorts tdefl_sym_freq[] array by 16-bit key m_key. Returns ptr to sorted values.
typedef struct { mz_uint16 m_key, m_sym_index; } tdefl_sym_freq;
static tdefl_sym_freq* tdefl_radix_sort_syms(mz_uint num_syms, tdefl_sym_freq* pSyms0, tdefl_sym_freq* pSyms1)
{
  mz_uint32 total_passes = 2, pass_shift, pass, i, hist[256 * 2]; tdefl_sym_freq* pCur_syms = pSyms0, *pNew_syms = pSyms1; MZ_CLEAR_OBJ(hist);
  for (i = 0; i < num_syms; i++) { mz_uint freq = pSyms0[i].m_key; hist[freq & 0xFF]++; hist[256 + ((freq >> 8) & 0xFF)]++; }
  while ((total_passes > 1) && (num_syms == hist[(total_passes - 1) * 256])) total_passes--;
  for (pass_shift = 0, pass = 0; pass < total_passes; pass++, pass_shift += 8)
  {
    const mz_uint32* pHist = &hist[pass << 8];
    mz_uint offsets[256], cur_ofs = 0;
    for (i = 0; i < 256; i++) { offsets[i] = cur_ofs; cur_ofs += pHist[i]; }
    for (i = 0; i < num_syms; i++) pNew_syms[offsets[(pCur_syms[i].m_key >> pass_shift) & 0xFF]++] = pCur_syms[i];
    { tdefl_sym_freq* t = pCur_syms; pCur_syms = pNew_syms; pNew_syms = t; }
  }
  return pCur_syms;
}

// tdefl_calculate_minimum_redundancy() originally written by: Alistair Moffat, alistair@cs.mu.oz.au, Jyrki Katajainen, jyrki@diku.dk, November 1996.
static void tdefl_calculate_minimum_redundancy(tdefl_sym_freq *A, int n)
{
  int root, leaf, next, avbl, used, dpth;
  if (n==0) return; else if (n==1) { A[0].m_key = 1; return; }
  A[0].m_key += A[1].m_key; root = 0; leaf = 2;
  for (next=1; next < n-1; next++)
  {
    if (leaf>=n || A[root].m_key<A[leaf].m_key) { A[next].m_key = A[root].m_key; A[root++].m_key = (mz_uint16)next; } else A[next].m_key = A[leaf++].m_key;
    if (leaf>=n || (root<next && A[root].m_key<A[leaf].m_key)) { A[next].m_key = (mz_uint16)(A[next].m_key + A[root].m_key); A[root++].m_key = (mz_uint16)next; } else A[next].m_key = (mz_uint16)(A[next].m_key + A[leaf++].m_key);
  }
  A[n-2].m_key = 0; for (next=n-3; next>=0; next--) A[next].m_key = A[A[next].m_key].m_key+1;
  avbl = 1; used = dpth = 0; root = n-2; next = n-1;
  while (avbl>0)
  {
    while (root>=0 && (int)A[root].m_key==dpth) { used++; root--; }
    while (avbl>used) { A[next--].m_key = (mz_uint16)(dpth); avbl--; }
    avbl = 2*used; dpth++; used = 0;
  }
}

// Limits canonical Huffman code table's max code size.
enum { TDEFL_MAX_SUPPORTED_HUFF_CODESIZE = 32 };
static void tdefl_huffman_enforce_max_code_size(int *pNum_codes, int code_list_len, int max_code_size)
{
  int i; mz_uint32 total = 0; if (code_list_len <= 1) return;
  for (i = max_code_size + 1; i <= TDEFL_MAX_SUPPORTED_HUFF_CODESIZE; i++) pNum_codes[max_code_size] += pNum_codes[i];
  for (i = max_code_size; i > 0; i--) total += (((mz_uint32)pNum_codes[i]) << (max_code_size - i));
  while (total != (1UL << max_code_size))
  {
    pNum_codes[max_code_size]--;
    for (i = max_code_size - 1; i > 0; i--) if (pNum_codes[i]) { pNum_codes[i]--; pNum_codes[i + 1] += 2; break; }
    total--;
  }
}

static void tdefl_optimize_huffman_table(tdefl_compressor *d, int table_num, int table_len, int code_size_limit, int static_table)
{
  int i, j, l, num_codes[1 + TDEFL_MAX_SUPPORTED_HUFF_CODESIZE]; mz_uint next_code[TDEFL_MAX_SUPPORTED_HUFF_CODESIZE + 1]; MZ_CLEAR_OBJ(num_codes);
  if (static_table)
  {
    for (i = 0; i < table_len; i++) num_codes[d->m_huff_code_sizes[table_num][i]]++;
  }
  else
  {
    tdefl_sym_freq syms0[TDEFL_MAX_HUFF_SYMBOLS], syms1[TDEFL_MAX_HUFF_SYMBOLS], *pSyms;
    int num_used_syms = 0;
    const mz_uint16 *pSym_count = &d->m_huff_count[table_num][0];
    for (i = 0; i < table_len; i++) if (pSym_count[i]) { syms0[num_used_syms].m_key = (mz_uint16)pSym_count[i]; syms0[num_used_syms++].m_sym_index = (mz_uint16)i; }

    pSyms = tdefl_radix_sort_syms(num_used_syms, syms0, syms1); tdefl_calculate_minimum_redundancy(pSyms, num_used_syms);

    for (i = 0; i < num_used_syms; i++) num_codes[pSyms[i].m_key]++;

    tdefl_huffman_enforce_max_code_size(num_codes, num_used_syms, code_size_limit);

    MZ_CLEAR_OBJ(d->m_huff_code_sizes[table_num]); MZ_CLEAR_OBJ(d->m_huff_codes[table_num]);
    for (i = 1, j = num_used_syms; i <= code_size_limit; i++)
      for (l = num_codes[i]; l > 0; l--) d->m_huff_code_sizes[table_num][pSyms[--j].m_sym_index] = (mz_uint8)(i);
  }

  next_code[1] = 0; for (j = 0, i = 2; i <= code_size_limit; i++) next_code[i] = j = ((j + num_codes[i - 1]) << 1);

  for (i = 0; i < table_len; i++)
  {
    mz_uint rev_code = 0, code, code_size; if ((code_size = d->m_huff_code_sizes[table_num][i]) == 0) continue;
    code = next_code[code_size]++; for (l = code_size; l > 0; l--, code >>= 1) rev_code = (rev_code << 1) | (code & 1);
    d->m_huff_codes[table_num][i] = (mz_uint16)rev_code;
  }
}

#define TDEFL_PUT_BITS(b, l) do { \
  mz_uint bits = b; mz_uint len = l; MZ_ASSERT(bits <= ((1U << len) - 1U)); \
  d->m_bit_buffer |= (bits << d->m_bits_in); d->m_bits_in += len; \
  while (d->m_bits_in >= 8) { \
    if (d->m_pOutput_buf < d->m_pOutput_buf_end) \
      *d->m_pOutput_buf++ = (mz_uint8)(d->m_bit_buffer); \
      d->m_bit_buffer >>= 8; \
      d->m_bits_in -= 8; \
  } \
} MZ_MACRO_END

#define TDEFL_RLE_PREV_CODE_SIZE() { if (rle_repeat_count) { \
  if (rle_repeat_count < 3) { \
    d->m_huff_count[2][prev_code_size] = (mz_uint16)(d->m_huff_count[2][prev_code_size] + rle_repeat_count); \
    while (rle_repeat_count--) packed_code_sizes[num_packed_code_sizes++] = prev_code_size; \
  } else { \
    d->m_huff_count[2][16] = (mz_uint16)(d->m_huff_count[2][16] + 1); packed_code_sizes[num_packed_code_sizes++] = 16; packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_repeat_count - 3); \
} rle_repeat_count = 0; } }

#define TDEFL_RLE_ZERO_CODE_SIZE() { if (rle_z_count) { \
  if (rle_z_count < 3) { \
    d->m_huff_count[2][0] = (mz_uint16)(d->m_huff_count[2][0] + rle_z_count); while (rle_z_count--) packed_code_sizes[num_packed_code_sizes++] = 0; \
  } else if (rle_z_count <= 10) { \
    d->m_huff_count[2][17] = (mz_uint16)(d->m_huff_count[2][17] + 1); packed_code_sizes[num_packed_code_sizes++] = 17; packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_z_count - 3); \
  } else { \
    d->m_huff_count[2][18] = (mz_uint16)(d->m_huff_count[2][18] + 1); packed_code_sizes[num_packed_code_sizes++] = 18; packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_z_count - 11); \
} rle_z_count = 0; } }

static mz_uint8 s_tdefl_packed_code_size_syms_swizzle[] = { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 };

static void tdefl_start_dynamic_block(tdefl_compressor *d)
{
  int num_lit_codes, num_dist_codes, num_bit_lengths; mz_uint i, total_code_sizes_to_pack, num_packed_code_sizes, rle_z_count, rle_repeat_count, packed_code_sizes_index;
  mz_uint8 code_sizes_to_pack[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], packed_code_sizes[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], prev_code_size = 0xFF;

  d->m_huff_count[0][256] = 1;

  tdefl_optimize_huffman_table(d, 0, TDEFL_MAX_HUFF_SYMBOLS_0, 15, MZ_FALSE);
  tdefl_optimize_huffman_table(d, 1, TDEFL_MAX_HUFF_SYMBOLS_1, 15, MZ_FALSE);

  for (num_lit_codes = 286; num_lit_codes > 257; num_lit_codes--) if (d->m_huff_code_sizes[0][num_lit_codes - 1]) break;
  for (num_dist_codes = 30; num_dist_codes > 1; num_dist_codes--) if (d->m_huff_code_sizes[1][num_dist_codes - 1]) break;

  memcpy(code_sizes_to_pack, &d->m_huff_code_sizes[0][0], num_lit_codes);
  memcpy(code_sizes_to_pack + num_lit_codes, &d->m_huff_code_sizes[1][0], num_dist_codes);
  total_code_sizes_to_pack = num_lit_codes + num_dist_codes; num_packed_code_sizes = 0; rle_z_count = 0; rle_repeat_count = 0;

  memset(&d->m_huff_count[2][0], 0, sizeof(d->m_huff_count[2][0]) * TDEFL_MAX_HUFF_SYMBOLS_2);
  for (i = 0; i < total_code_sizes_to_pack; i++)
  {
    mz_uint8 code_size = code_sizes_to_pack[i];
    if (!code_size)
    {
      TDEFL_RLE_PREV_CODE_SIZE();
      if (++rle_z_count == 138) { TDEFL_RLE_ZERO_CODE_SIZE(); }
    }
    else
    {
      TDEFL_RLE_ZERO_CODE_SIZE();
      if (code_size != prev_code_size)
      {
        TDEFL_RLE_PREV_CODE_SIZE();
        d->m_huff_count[2][code_size] = (mz_uint16)(d->m_huff_count[2][code_size] + 1); packed_code_sizes[num_packed_code_sizes++] = code_size;
      }
      else if (++rle_repeat_count == 6)
      {
        TDEFL_RLE_PREV_CODE_SIZE();
      }
    }
    prev_code_size = code_size;
  }
  if (rle_repeat_count) { TDEFL_RLE_PREV_CODE_SIZE(); } else { TDEFL_RLE_ZERO_CODE_SIZE(); }

  tdefl_optimize_huffman_table(d, 2, TDEFL_MAX_HUFF_SYMBOLS_2, 7, MZ_FALSE);

  TDEFL_PUT_BITS(2, 2);

  TDEFL_PUT_BITS(num_lit_codes - 257, 5);
  TDEFL_PUT_BITS(num_dist_codes - 1, 5);

  for (num_bit_lengths = 18; num_bit_lengths >= 0; num_bit_lengths--) if (d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle[num_bit_lengths]]) break;
  num_bit_lengths = MZ_MAX(4, (num_bit_lengths + 1)); TDEFL_PUT_BITS(num_bit_lengths - 4, 4);
  for (i = 0; (int)i < num_bit_lengths; i++) TDEFL_PUT_BITS(d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle[i]], 3);

  for (packed_code_sizes_index = 0; packed_code_sizes_index < num_packed_code_sizes; )
  {
    mz_uint code = packed_code_sizes[packed_code_sizes_index++]; MZ_ASSERT(code < TDEFL_MAX_HUFF_SYMBOLS_2);
    TDEFL_PUT_BITS(d->m_huff_codes[2][code], d->m_huff_code_sizes[2][code]);
    if (code >= 16) TDEFL_PUT_BITS(packed_code_sizes[packed_code_sizes_index++], "\02\03\07"[code - 16]);
  }
}

static void tdefl_start_static_block(tdefl_compressor *d)
{
  mz_uint i;
  mz_uint8 *p = &d->m_huff_code_sizes[0][0];

  for (i = 0; i <= 143; ++i) *p++ = 8;
  for ( ; i <= 255; ++i) *p++ = 9;
  for ( ; i <= 279; ++i) *p++ = 7;
  for ( ; i <= 287; ++i) *p++ = 8;

  memset(d->m_huff_code_sizes[1], 5, 32);

  tdefl_optimize_huffman_table(d, 0, 288, 15, MZ_TRUE);
  tdefl_optimize_huffman_table(d, 1, 32, 15, MZ_TRUE);

  TDEFL_PUT_BITS(1, 2);
}

static const mz_uint mz_bitmasks[17] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF };

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && MINIZ_HAS_64BIT_REGISTERS
static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d)
{
  mz_uint flags;
  mz_uint8 *pLZ_codes;
  mz_uint8 *pOutput_buf = d->m_pOutput_buf;
  mz_uint8 *pLZ_code_buf_end = d->m_pLZ_code_buf;
  mz_uint64 bit_buffer = d->m_bit_buffer;
  mz_uint bits_in = d->m_bits_in;

#define TDEFL_PUT_BITS_FAST(b, l) { bit_buffer |= (((mz_uint64)(b)) << bits_in); bits_in += (l); }

  flags = 1;
  for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < pLZ_code_buf_end; flags >>= 1)
  {
    if (flags == 1)
      flags = *pLZ_codes++ | 0x100;

    if (flags & 1)
    {
      mz_uint s0, s1, n0, n1, sym, num_extra_bits;
      mz_uint match_len = pLZ_codes[0], match_dist = *(const mz_uint16 *)(pLZ_codes + 1); pLZ_codes += 3;

      MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
      TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][s_tdefl_len_sym[match_len]], d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
      TDEFL_PUT_BITS_FAST(match_len & mz_bitmasks[s_tdefl_len_extra[match_len]], s_tdefl_len_extra[match_len]);

      // This sequence coaxes MSVC into using cmov's vs. jmp's.
      s0 = s_tdefl_small_dist_sym[match_dist & 511];
      n0 = s_tdefl_small_dist_extra[match_dist & 511];
      s1 = s_tdefl_large_dist_sym[match_dist >> 8];
      n1 = s_tdefl_large_dist_extra[match_dist >> 8];
      sym = (match_dist < 512) ? s0 : s1;
      num_extra_bits = (match_dist < 512) ? n0 : n1;

      MZ_ASSERT(d->m_huff_code_sizes[1][sym]);
      TDEFL_PUT_BITS_FAST(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]);
      TDEFL_PUT_BITS_FAST(match_dist & mz_bitmasks[num_extra_bits], num_extra_bits);
    }
    else
    {
      mz_uint lit = *pLZ_codes++;
      MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
      TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);

      if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end))
      {
        flags >>= 1;
        lit = *pLZ_codes++;
        MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
        TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);

        if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end))
        {
          flags >>= 1;
          lit = *pLZ_codes++;
          MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
          TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);
        }
      }
    }

    if (pOutput_buf >= d->m_pOutput_buf_end)
      return MZ_FALSE;

    *(mz_uint64*)pOutput_buf = bit_buffer;
    pOutput_buf += (bits_in >> 3);
    bit_buffer >>= (bits_in & ~7);
    bits_in &= 7;
  }

#undef TDEFL_PUT_BITS_FAST

  d->m_pOutput_buf = pOutput_buf;
  d->m_bits_in = 0;
  d->m_bit_buffer = 0;

  while (bits_in)
  {
    mz_uint32 n = MZ_MIN(bits_in, 16);
    TDEFL_PUT_BITS((mz_uint)bit_buffer & mz_bitmasks[n], n);
    bit_buffer >>= n;
    bits_in -= n;
  }

  TDEFL_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]);

  return (d->m_pOutput_buf < d->m_pOutput_buf_end);
}
#else
static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d)
{
  mz_uint flags;
  mz_uint8 *pLZ_codes;

  flags = 1;
  for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < d->m_pLZ_code_buf; flags >>= 1)
  {
    if (flags == 1)
      flags = *pLZ_codes++ | 0x100;
    if (flags & 1)
    {
      mz_uint sym, num_extra_bits;
      mz_uint match_len = pLZ_codes[0], match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8)); pLZ_codes += 3;

      MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
      TDEFL_PUT_BITS(d->m_huff_codes[0][s_tdefl_len_sym[match_len]], d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
      TDEFL_PUT_BITS(match_len & mz_bitmasks[s_tdefl_len_extra[match_len]], s_tdefl_len_extra[match_len]);

      if (match_dist < 512)
      {
        sym = s_tdefl_small_dist_sym[match_dist]; num_extra_bits = s_tdefl_small_dist_extra[match_dist];
      }
      else
      {
        sym = s_tdefl_large_dist_sym[match_dist >> 8]; num_extra_bits = s_tdefl_large_dist_extra[match_dist >> 8];
      }
      MZ_ASSERT(d->m_huff_code_sizes[1][sym]);
      TDEFL_PUT_BITS(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]);
      TDEFL_PUT_BITS(match_dist & mz_bitmasks[num_extra_bits], num_extra_bits);
    }
    else
    {
      mz_uint lit = *pLZ_codes++;
      MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
      TDEFL_PUT_BITS(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);
    }
  }

  TDEFL_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]);

  return (d->m_pOutput_buf < d->m_pOutput_buf_end);
}
#endif // MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && MINIZ_HAS_64BIT_REGISTERS

static mz_bool tdefl_compress_block(tdefl_compressor *d, mz_bool static_block)
{
  if (static_block)
    tdefl_start_static_block(d);
  else
    tdefl_start_dynamic_block(d);
  return tdefl_compress_lz_codes(d);
}

static int tdefl_flush_block(tdefl_compressor *d, int flush)
{
  mz_uint saved_bit_buf, saved_bits_in;
  mz_uint8 *pSaved_output_buf;
  mz_bool comp_block_succeeded = MZ_FALSE;
  int n, use_raw_block = ((d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS) != 0) && (d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size;
  mz_uint8 *pOutput_buf_start = ((d->m_pPut_buf_func == NULL) && ((*d->m_pOut_buf_size - d->m_out_buf_ofs) >= TDEFL_OUT_BUF_SIZE)) ? ((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs) : d->m_output_buf;

  d->m_pOutput_buf = pOutput_buf_start;
  d->m_pOutput_buf_end = d->m_pOutput_buf + TDEFL_OUT_BUF_SIZE - 16;

  MZ_ASSERT(!d->m_output_flush_remaining);
  d->m_output_flush_ofs = 0;
  d->m_output_flush_remaining = 0;

  *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> d->m_num_flags_left);
  d->m_pLZ_code_buf -= (d->m_num_flags_left == 8);

  if ((d->m_flags & TDEFL_WRITE_ZLIB_HEADER) && (!d->m_block_index))
  {
    TDEFL_PUT_BITS(0x78, 8); TDEFL_PUT_BITS(0x01, 8);
  }

  TDEFL_PUT_BITS(flush == TDEFL_FINISH, 1);

  pSaved_output_buf = d->m_pOutput_buf; saved_bit_buf = d->m_bit_buffer; saved_bits_in = d->m_bits_in;

  if (!use_raw_block)
    comp_block_succeeded = tdefl_compress_block(d, (d->m_flags & TDEFL_FORCE_ALL_STATIC_BLOCKS) || (d->m_total_lz_bytes < 48));

  // If the block gets expanded, forget the current contents of the output buffer and send a raw block instead.
  if ( ((use_raw_block) || ((d->m_total_lz_bytes) && ((d->m_pOutput_buf - pSaved_output_buf + 1U) >= d->m_total_lz_bytes))) &&
       ((d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size) )
  {
    mz_uint i; d->m_pOutput_buf = pSaved_output_buf; d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
    TDEFL_PUT_BITS(0, 2);
    if (d->m_bits_in) { TDEFL_PUT_BITS(0, 8 - d->m_bits_in); }
    for (i = 2; i; --i, d->m_total_lz_bytes ^= 0xFFFF)
    {
      TDEFL_PUT_BITS(d->m_total_lz_bytes & 0xFFFF, 16);
    }
    for (i = 0; i < d->m_total_lz_bytes; ++i)
    {
      TDEFL_PUT_BITS(d->m_dict[(d->m_lz_code_buf_dict_pos + i) & TDEFL_LZ_DICT_SIZE_MASK], 8);
    }
  }
  // Check for the extremely unlikely (if not impossible) case of the compressed block not fitting into the output buffer when using dynamic codes.
  else if (!comp_block_succeeded)
  {
    d->m_pOutput_buf = pSaved_output_buf; d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
    tdefl_compress_block(d, MZ_TRUE);
  }

  if (flush)
  {
    if (flush == TDEFL_FINISH)
    {
      if (d->m_bits_in) { TDEFL_PUT_BITS(0, 8 - d->m_bits_in); }
      if (d->m_flags & TDEFL_WRITE_ZLIB_HEADER) { mz_uint i, a = d->m_adler32; for (i = 0; i < 4; i++) { TDEFL_PUT_BITS((a >> 24) & 0xFF, 8); a <<= 8; } }
    }
    else
    {
      mz_uint i, z = 0; TDEFL_PUT_BITS(0, 3); if (d->m_bits_in) { TDEFL_PUT_BITS(0, 8 - d->m_bits_in); } for (i = 2; i; --i, z ^= 0xFFFF) { TDEFL_PUT_BITS(z & 0xFFFF, 16); }
    }
  }

  MZ_ASSERT(d->m_pOutput_buf < d->m_pOutput_buf_end);

  memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0);
  memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1);

  d->m_pLZ_code_buf = d->m_lz_code_buf + 1; d->m_pLZ_flags = d->m_lz_code_buf; d->m_num_flags_left = 8; d->m_lz_code_buf_dict_pos += d->m_total_lz_bytes; d->m_total_lz_bytes = 0; d->m_block_index++;

  if ((n = (int)(d->m_pOutput_buf - pOutput_buf_start)) != 0)
  {
    if (d->m_pPut_buf_func)
    {
      *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf;
      if (!(*d->m_pPut_buf_func)(d->m_output_buf, n, d->m_pPut_buf_user))
        return (d->m_prev_return_status = TDEFL_STATUS_PUT_BUF_FAILED);
    }
    else if (pOutput_buf_start == d->m_output_buf)
    {
      int bytes_to_copy = (int)MZ_MIN((size_t)n, (size_t)(*d->m_pOut_buf_size - d->m_out_buf_ofs));
      memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf, bytes_to_copy);
      d->m_out_buf_ofs += bytes_to_copy;
      if ((n -= bytes_to_copy) != 0)
      {
        d->m_output_flush_ofs = bytes_to_copy;
        d->m_output_flush_remaining = n;
      }
    }
    else
    {
      d->m_out_buf_ofs += n;
    }
  }

  return d->m_output_flush_remaining;
}

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES
#define TDEFL_READ_UNALIGNED_WORD(p) *(const mz_uint16*)(p)
static MZ_FORCEINLINE void tdefl_find_match(tdefl_compressor *d, mz_uint lookahead_pos, mz_uint max_dist, mz_uint max_match_len, mz_uint *pMatch_dist, mz_uint *pMatch_len)
{
  mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK, match_len = *pMatch_len, probe_pos = pos, next_probe_pos, probe_len;
  mz_uint num_probes_left = d->m_max_probes[match_len >= 32];
  const mz_uint16 *s = (const mz_uint16*)(d->m_dict + pos), *p, *q;
  mz_uint16 c01 = TDEFL_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]), s01 = TDEFL_READ_UNALIGNED_WORD(s);
  MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN); if (max_match_len <= match_len) return;
  for ( ; ; )
  {
    for ( ; ; )
    {
      if (--num_probes_left == 0) return;
      #define TDEFL_PROBE \
        next_probe_pos = d->m_next[probe_pos]; \
        if ((!next_probe_pos) || ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist)) return; \
        probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK; \
        if (TDEFL_READ_UNALIGNED_WORD(&d->m_dict[probe_pos + match_len - 1]) == c01) break;
      TDEFL_PROBE; TDEFL_PROBE; TDEFL_PROBE;
    }
    if (!dist) break; q = (const mz_uint16*)(d->m_dict + probe_pos); if (TDEFL_READ_UNALIGNED_WORD(q) != s01) continue; p = s; probe_len = 32;
    do { } while ( (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) &&
                   (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && (--probe_len > 0) );
    if (!probe_len)
    {
      *pMatch_dist = dist; *pMatch_len = MZ_MIN(max_match_len, TDEFL_MAX_MATCH_LEN); break;
    }
    else if ((probe_len = ((mz_uint)(p - s) * 2) + (mz_uint)(*(const mz_uint8*)p == *(const mz_uint8*)q)) > match_len)
    {
      *pMatch_dist = dist; if ((*pMatch_len = match_len = MZ_MIN(max_match_len, probe_len)) == max_match_len) break;
      c01 = TDEFL_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]);
    }
  }
}
#else
static MZ_FORCEINLINE void tdefl_find_match(tdefl_compressor *d, mz_uint lookahead_pos, mz_uint max_dist, mz_uint max_match_len, mz_uint *pMatch_dist, mz_uint *pMatch_len)
{
  mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK, match_len = *pMatch_len, probe_pos = pos, next_probe_pos, probe_len;
  mz_uint num_probes_left = d->m_max_probes[match_len >= 32];
  const mz_uint8 *s = d->m_dict + pos, *p, *q;
  mz_uint8 c0 = d->m_dict[pos + match_len], c1 = d->m_dict[pos + match_len - 1];
  MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN); if (max_match_len <= match_len) return;
  for ( ; ; )
  {
    for ( ; ; )
    {
      if (--num_probes_left == 0) return;
      #define TDEFL_PROBE \
        next_probe_pos = d->m_next[probe_pos]; \
        if ((!next_probe_pos) || ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist)) return; \
        probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK; \
        if ((d->m_dict[probe_pos + match_len] == c0) && (d->m_dict[probe_pos + match_len - 1] == c1)) break;
      TDEFL_PROBE; TDEFL_PROBE; TDEFL_PROBE;
    }
    if (!dist) break; p = s; q = d->m_dict + probe_pos; for (probe_len = 0; probe_len < max_match_len; probe_len++) if (*p++ != *q++) break;
    if (probe_len > match_len)
    {
      *pMatch_dist = dist; if ((*pMatch_len = match_len = probe_len) == max_match_len) return;
      c0 = d->m_dict[pos + match_len]; c1 = d->m_dict[pos + match_len - 1];
    }
  }
}
#endif // #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
static mz_bool tdefl_compress_fast(tdefl_compressor *d)
{
  // Faster, minimally featured LZRW1-style match+parse loop with better register utilization. Intended for applications where raw throughput is valued more highly than ratio.
  mz_uint lookahead_pos = d->m_lookahead_pos, lookahead_size = d->m_lookahead_size, dict_size = d->m_dict_size, total_lz_bytes = d->m_total_lz_bytes, num_flags_left = d->m_num_flags_left;
  mz_uint8 *pLZ_code_buf = d->m_pLZ_code_buf, *pLZ_flags = d->m_pLZ_flags;
  mz_uint cur_pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK;

  while ((d->m_src_buf_left) || ((d->m_flush) && (lookahead_size)))
  {
    const mz_uint TDEFL_COMP_FAST_LOOKAHEAD_SIZE = 4096;
    mz_uint dst_pos = (lookahead_pos + lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK;
    mz_uint num_bytes_to_process = (mz_uint)MZ_MIN(d->m_src_buf_left, TDEFL_COMP_FAST_LOOKAHEAD_SIZE - lookahead_size);
    d->m_src_buf_left -= num_bytes_to_process;
    lookahead_size += num_bytes_to_process;

    while (num_bytes_to_process)
    {
      mz_uint32 n = MZ_MIN(TDEFL_LZ_DICT_SIZE - dst_pos, num_bytes_to_process);
      memcpy(d->m_dict + dst_pos, d->m_pSrc, n);
      if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
        memcpy(d->m_dict + TDEFL_LZ_DICT_SIZE + dst_pos, d->m_pSrc, MZ_MIN(n, (TDEFL_MAX_MATCH_LEN - 1) - dst_pos));
      d->m_pSrc += n;
      dst_pos = (dst_pos + n) & TDEFL_LZ_DICT_SIZE_MASK;
      num_bytes_to_process -= n;
    }

    dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - lookahead_size, dict_size);
    if ((!d->m_flush) && (lookahead_size < TDEFL_COMP_FAST_LOOKAHEAD_SIZE)) break;

    while (lookahead_size >= 4)
    {
      mz_uint cur_match_dist, cur_match_len = 1;
      mz_uint8 *pCur_dict = d->m_dict + cur_pos;
      mz_uint first_trigram = (*(const mz_uint32 *)pCur_dict) & 0xFFFFFF;
      mz_uint hash = (first_trigram ^ (first_trigram >> (24 - (TDEFL_LZ_HASH_BITS - 8)))) & TDEFL_LEVEL1_HASH_SIZE_MASK;
      mz_uint probe_pos = d->m_hash[hash];
      d->m_hash[hash] = (mz_uint16)lookahead_pos;

      if (((cur_match_dist = (mz_uint16)(lookahead_pos - probe_pos)) <= dict_size) && ((*(const mz_uint32 *)(d->m_dict + (probe_pos &= TDEFL_LZ_DICT_SIZE_MASK)) & 0xFFFFFF) == first_trigram))
      {
        const mz_uint16 *p = (const mz_uint16 *)pCur_dict;
        const mz_uint16 *q = (const mz_uint16 *)(d->m_dict + probe_pos);
        mz_uint32 probe_len = 32;
        do { } while ( (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) &&
          (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && (TDEFL_READ_UNALIGNED_WORD(++p) == TDEFL_READ_UNALIGNED_WORD(++q)) && (--probe_len > 0) );
        cur_match_len = ((mz_uint)(p - (const mz_uint16 *)pCur_dict) * 2) + (mz_uint)(*(const mz_uint8 *)p == *(const mz_uint8 *)q);
        if (!probe_len)
          cur_match_len = cur_match_dist ? TDEFL_MAX_MATCH_LEN : 0;

        if ((cur_match_len < TDEFL_MIN_MATCH_LEN) || ((cur_match_len == TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 8U*1024U)))
        {
          cur_match_len = 1;
          *pLZ_code_buf++ = (mz_uint8)first_trigram;
          *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1);
          d->m_huff_count[0][(mz_uint8)first_trigram]++;
        }
        else
        {
          mz_uint32 s0, s1;
          cur_match_len = MZ_MIN(cur_match_len, lookahead_size);

          MZ_ASSERT((cur_match_len >= TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 1) && (cur_match_dist <= TDEFL_LZ_DICT_SIZE));

          cur_match_dist--;

          pLZ_code_buf[0] = (mz_uint8)(cur_match_len - TDEFL_MIN_MATCH_LEN);
          *(mz_uint16 *)(&pLZ_code_buf[1]) = (mz_uint16)cur_match_dist;
          pLZ_code_buf += 3;
          *pLZ_flags = (mz_uint8)((*pLZ_flags >> 1) | 0x80);

          s0 = s_tdefl_small_dist_sym[cur_match_dist & 511];
          s1 = s_tdefl_large_dist_sym[cur_match_dist >> 8];
          d->m_huff_count[1][(cur_match_dist < 512) ? s0 : s1]++;

          d->m_huff_count[0][s_tdefl_len_sym[cur_match_len - TDEFL_MIN_MATCH_LEN]]++;
        }
      }
      else
      {
        *pLZ_code_buf++ = (mz_uint8)first_trigram;
        *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1);
        d->m_huff_count[0][(mz_uint8)first_trigram]++;
      }

      if (--num_flags_left == 0) { num_flags_left = 8; pLZ_flags = pLZ_code_buf++; }

      total_lz_bytes += cur_match_len;
      lookahead_pos += cur_match_len;
      dict_size = MZ_MIN(dict_size + cur_match_len, TDEFL_LZ_DICT_SIZE);
      cur_pos = (cur_pos + cur_match_len) & TDEFL_LZ_DICT_SIZE_MASK;
      MZ_ASSERT(lookahead_size >= cur_match_len);
      lookahead_size -= cur_match_len;

      if (pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8])
      {
        int n;
        d->m_lookahead_pos = lookahead_pos; d->m_lookahead_size = lookahead_size; d->m_dict_size = dict_size;
        d->m_total_lz_bytes = total_lz_bytes; d->m_pLZ_code_buf = pLZ_code_buf; d->m_pLZ_flags = pLZ_flags; d->m_num_flags_left = num_flags_left;
        if ((n = tdefl_flush_block(d, 0)) != 0)
          return (n < 0) ? MZ_FALSE : MZ_TRUE;
        total_lz_bytes = d->m_total_lz_bytes; pLZ_code_buf = d->m_pLZ_code_buf; pLZ_flags = d->m_pLZ_flags; num_flags_left = d->m_num_flags_left;
      }
    }

    while (lookahead_size)
    {
      mz_uint8 lit = d->m_dict[cur_pos];

      total_lz_bytes++;
      *pLZ_code_buf++ = lit;
      *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1);
      if (--num_flags_left == 0) { num_flags_left = 8; pLZ_flags = pLZ_code_buf++; }

      d->m_huff_count[0][lit]++;

      lookahead_pos++;
      dict_size = MZ_MIN(dict_size + 1, TDEFL_LZ_DICT_SIZE);
      cur_pos = (cur_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK;
      lookahead_size--;

      if (pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8])
      {
        int n;
        d->m_lookahead_pos = lookahead_pos; d->m_lookahead_size = lookahead_size; d->m_dict_size = dict_size;
        d->m_total_lz_bytes = total_lz_bytes; d->m_pLZ_code_buf = pLZ_code_buf; d->m_pLZ_flags = pLZ_flags; d->m_num_flags_left = num_flags_left;
        if ((n = tdefl_flush_block(d, 0)) != 0)
          return (n < 0) ? MZ_FALSE : MZ_TRUE;
        total_lz_bytes = d->m_total_lz_bytes; pLZ_code_buf = d->m_pLZ_code_buf; pLZ_flags = d->m_pLZ_flags; num_flags_left = d->m_num_flags_left;
      }
    }
  }

  d->m_lookahead_pos = lookahead_pos; d->m_lookahead_size = lookahead_size; d->m_dict_size = dict_size;
  d->m_total_lz_bytes = total_lz_bytes; d->m_pLZ_code_buf = pLZ_code_buf; d->m_pLZ_flags = pLZ_flags; d->m_num_flags_left = num_flags_left;
  return MZ_TRUE;
}
#endif // MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN

static MZ_FORCEINLINE void tdefl_record_literal(tdefl_compressor *d, mz_uint8 lit)
{
  d->m_total_lz_bytes++;
  *d->m_pLZ_code_buf++ = lit;
  *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> 1); if (--d->m_num_flags_left == 0) { d->m_num_flags_left = 8; d->m_pLZ_flags = d->m_pLZ_code_buf++; }
  d->m_huff_count[0][lit]++;
}

static MZ_FORCEINLINE void tdefl_record_match(tdefl_compressor *d, mz_uint match_len, mz_uint match_dist)
{
  mz_uint32 s0, s1;

  MZ_ASSERT((match_len >= TDEFL_MIN_MATCH_LEN) && (match_dist >= 1) && (match_dist <= TDEFL_LZ_DICT_SIZE));

  d->m_total_lz_bytes += match_len;

  d->m_pLZ_code_buf[0] = (mz_uint8)(match_len - TDEFL_MIN_MATCH_LEN);

  match_dist -= 1;
  d->m_pLZ_code_buf[1] = (mz_uint8)(match_dist & 0xFF);
  d->m_pLZ_code_buf[2] = (mz_uint8)(match_dist >> 8); d->m_pLZ_code_buf += 3;

  *d->m_pLZ_flags = (mz_uint8)((*d->m_pLZ_flags >> 1) | 0x80); if (--d->m_num_flags_left == 0) { d->m_num_flags_left = 8; d->m_pLZ_flags = d->m_pLZ_code_buf++; }

  s0 = s_tdefl_small_dist_sym[match_dist & 511]; s1 = s_tdefl_large_dist_sym[(match_dist >> 8) & 127];
  d->m_huff_count[1][(match_dist < 512) ? s0 : s1]++;

  if (match_len >= TDEFL_MIN_MATCH_LEN) d->m_huff_count[0][s_tdefl_len_sym[match_len - TDEFL_MIN_MATCH_LEN]]++;
}

static mz_bool tdefl_compress_normal(tdefl_compressor *d)
{
  const mz_uint8 *pSrc = d->m_pSrc; size_t src_buf_left = d->m_src_buf_left;
  tdefl_flush flush = d->m_flush;

  while ((src_buf_left) || ((flush) && (d->m_lookahead_size)))
  {
    mz_uint len_to_move, cur_match_dist, cur_match_len, cur_pos;
    // Update dictionary and hash chains. Keeps the lookahead size equal to TDEFL_MAX_MATCH_LEN.
    if ((d->m_lookahead_size + d->m_dict_size) >= (TDEFL_MIN_MATCH_LEN - 1))
    {
      mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK, ins_pos = d->m_lookahead_pos + d->m_lookahead_size - 2;
      mz_uint hash = (d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] << TDEFL_LZ_HASH_SHIFT) ^ d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK];
      mz_uint num_bytes_to_process = (mz_uint)MZ_MIN(src_buf_left, TDEFL_MAX_MATCH_LEN - d->m_lookahead_size);
      const mz_uint8 *pSrc_end = pSrc + num_bytes_to_process;
      src_buf_left -= num_bytes_to_process;
      d->m_lookahead_size += num_bytes_to_process;
      while (pSrc != pSrc_end)
      {
        mz_uint8 c = *pSrc++; d->m_dict[dst_pos] = c; if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1)) d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c;
        hash = ((hash << TDEFL_LZ_HASH_SHIFT) ^ c) & (TDEFL_LZ_HASH_SIZE - 1);
        d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash]; d->m_hash[hash] = (mz_uint16)(ins_pos);
        dst_pos = (dst_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK; ins_pos++;
      }
    }
    else
    {
      while ((src_buf_left) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN))
      {
        mz_uint8 c = *pSrc++;
        mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK;
        src_buf_left--;
        d->m_dict[dst_pos] = c;
        if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
          d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c;
        if ((++d->m_lookahead_size + d->m_dict_size) >= TDEFL_MIN_MATCH_LEN)
        {
          mz_uint ins_pos = d->m_lookahead_pos + (d->m_lookahead_size - 1) - 2;
          mz_uint hash = ((d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] << (TDEFL_LZ_HASH_SHIFT * 2)) ^ (d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK] << TDEFL_LZ_HASH_SHIFT) ^ c) & (TDEFL_LZ_HASH_SIZE - 1);
          d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash]; d->m_hash[hash] = (mz_uint16)(ins_pos);
        }
      }
    }
    d->m_dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - d->m_lookahead_size, d->m_dict_size);
    if ((!flush) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN))
      break;

    // Simple lazy/greedy parsing state machine.
    len_to_move = 1; cur_match_dist = 0; cur_match_len = d->m_saved_match_len ? d->m_saved_match_len : (TDEFL_MIN_MATCH_LEN - 1); cur_pos = d->m_lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK;
    if (d->m_flags & (TDEFL_RLE_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS))
    {
      if ((d->m_dict_size) && (!(d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS)))
      {
        mz_uint8 c = d->m_dict[(cur_pos - 1) & TDEFL_LZ_DICT_SIZE_MASK];
        cur_match_len = 0; while (cur_match_len < d->m_lookahead_size) { if (d->m_dict[cur_pos + cur_match_len] != c) break; cur_match_len++; }
        if (cur_match_len < TDEFL_MIN_MATCH_LEN) cur_match_len = 0; else cur_match_dist = 1;
      }
    }
    else
    {
      tdefl_find_match(d, d->m_lookahead_pos, d->m_dict_size, d->m_lookahead_size, &cur_match_dist, &cur_match_len);
    }
    if (((cur_match_len == TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 8U*1024U)) || (cur_pos == cur_match_dist) || ((d->m_flags & TDEFL_FILTER_MATCHES) && (cur_match_len <= 5)))
    {
      cur_match_dist = cur_match_len = 0;
    }
    if (d->m_saved_match_len)
    {
      if (cur_match_len > d->m_saved_match_len)
      {
        tdefl_record_literal(d, (mz_uint8)d->m_saved_lit);
        if (cur_match_len >= 128)
        {
          tdefl_record_match(d, cur_match_len, cur_match_dist);
          d->m_saved_match_len = 0; len_to_move = cur_match_len;
        }
        else
        {
          d->m_saved_lit = d->m_dict[cur_pos]; d->m_saved_match_dist = cur_match_dist; d->m_saved_match_len = cur_match_len;
        }
      }
      else
      {
        tdefl_record_match(d, d->m_saved_match_len, d->m_saved_match_dist);
        len_to_move = d->m_saved_match_len - 1; d->m_saved_match_len = 0;
      }
    }
    else if (!cur_match_dist)
      tdefl_record_literal(d, d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)]);
    else if ((d->m_greedy_parsing) || (d->m_flags & TDEFL_RLE_MATCHES) || (cur_match_len >= 128))
    {
      tdefl_record_match(d, cur_match_len, cur_match_dist);
      len_to_move = cur_match_len;
    }
    else
    {
      d->m_saved_lit = d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)]; d->m_saved_match_dist = cur_match_dist; d->m_saved_match_len = cur_match_len;
    }
    // Move the lookahead forward by len_to_move bytes.
    d->m_lookahead_pos += len_to_move;
    MZ_ASSERT(d->m_lookahead_size >= len_to_move);
    d->m_lookahead_size -= len_to_move;
    d->m_dict_size = MZ_MIN(d->m_dict_size + len_to_move, TDEFL_LZ_DICT_SIZE);
    // Check if it's time to flush the current LZ codes to the internal output buffer.
    if ( (d->m_pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) ||
         ( (d->m_total_lz_bytes > 31*1024) && (((((mz_uint)(d->m_pLZ_code_buf - d->m_lz_code_buf) * 115) >> 7) >= d->m_total_lz_bytes) || (d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS))) )
    {
      int n;
      d->m_pSrc = pSrc; d->m_src_buf_left = src_buf_left;
      if ((n = tdefl_flush_block(d, 0)) != 0)
        return (n < 0) ? MZ_FALSE : MZ_TRUE;
    }
  }

  d->m_pSrc = pSrc; d->m_src_buf_left = src_buf_left;
  return MZ_TRUE;
}

static tdefl_status tdefl_flush_output_buffer(tdefl_compressor *d)
{
  if (d->m_pIn_buf_size)
  {
    *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf;
  }

  if (d->m_pOut_buf_size)
  {
    size_t n = MZ_MIN(*d->m_pOut_buf_size - d->m_out_buf_ofs, d->m_output_flush_remaining);
    memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf + d->m_output_flush_ofs, n);
    d->m_output_flush_ofs += (mz_uint)n;
    d->m_output_flush_remaining -= (mz_uint)n;
    d->m_out_buf_ofs += n;

    *d->m_pOut_buf_size = d->m_out_buf_ofs;
  }

  return (d->m_finished && !d->m_output_flush_remaining) ? TDEFL_STATUS_DONE : TDEFL_STATUS_OKAY;
}

tdefl_status tdefl_compress(tdefl_compressor *d, const void *pIn_buf, size_t *pIn_buf_size, void *pOut_buf, size_t *pOut_buf_size, tdefl_flush flush)
{
  if (!d)
  {
    if (pIn_buf_size) *pIn_buf_size = 0;
    if (pOut_buf_size) *pOut_buf_size = 0;
    return TDEFL_STATUS_BAD_PARAM;
  }

  d->m_pIn_buf = pIn_buf; d->m_pIn_buf_size = pIn_buf_size;
  d->m_pOut_buf = pOut_buf; d->m_pOut_buf_size = pOut_buf_size;
  d->m_pSrc = (const mz_uint8 *)(pIn_buf); d->m_src_buf_left = pIn_buf_size ? *pIn_buf_size : 0;
  d->m_out_buf_ofs = 0;
  d->m_flush = flush;

  if ( ((d->m_pPut_buf_func != NULL) == ((pOut_buf != NULL) || (pOut_buf_size != NULL))) || (d->m_prev_return_status != TDEFL_STATUS_OKAY) ||
        (d->m_wants_to_finish && (flush != TDEFL_FINISH)) || (pIn_buf_size && *pIn_buf_size && !pIn_buf) || (pOut_buf_size && *pOut_buf_size && !pOut_buf) )
  {
    if (pIn_buf_size) *pIn_buf_size = 0;
    if (pOut_buf_size) *pOut_buf_size = 0;
    return (d->m_prev_return_status = TDEFL_STATUS_BAD_PARAM);
  }
  d->m_wants_to_finish |= (flush == TDEFL_FINISH);

  if ((d->m_output_flush_remaining) || (d->m_finished))
    return (d->m_prev_return_status = tdefl_flush_output_buffer(d));

#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
  if (((d->m_flags & TDEFL_MAX_PROBES_MASK) == 1) &&
      ((d->m_flags & TDEFL_GREEDY_PARSING_FLAG) != 0) &&
      ((d->m_flags & (TDEFL_FILTER_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS | TDEFL_RLE_MATCHES)) == 0))
  {
    if (!tdefl_compress_fast(d))
      return d->m_prev_return_status;
  }
  else
#endif // #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
  {
    if (!tdefl_compress_normal(d))
      return d->m_prev_return_status;
  }

  if ((d->m_flags & (TDEFL_WRITE_ZLIB_HEADER | TDEFL_COMPUTE_ADLER32)) && (pIn_buf))
    d->m_adler32 = (mz_uint32)mz_adler32(d->m_adler32, (const mz_uint8 *)pIn_buf, d->m_pSrc - (const mz_uint8 *)pIn_buf);

  if ((flush) && (!d->m_lookahead_size) && (!d->m_src_buf_left) && (!d->m_output_flush_remaining))
  {
    if (tdefl_flush_block(d, flush) < 0)
      return d->m_prev_return_status;
    d->m_finished = (flush == TDEFL_FINISH);
    if (flush == TDEFL_FULL_FLUSH) { MZ_CLEAR_OBJ(d->m_hash); MZ_CLEAR_OBJ(d->m_next); d->m_dict_size = 0; }
  }

  return (d->m_prev_return_status = tdefl_flush_output_buffer(d));
}

tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, tdefl_flush flush)
{
  MZ_ASSERT(d->m_pPut_buf_func); return tdefl_compress(d, pIn_buf, &in_buf_size, NULL, NULL, flush);
}

tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)
{
  d->m_pPut_buf_func = pPut_buf_func; d->m_pPut_buf_user = pPut_buf_user;
  d->m_flags = (mz_uint)(flags); d->m_max_probes[0] = 1 + ((flags & 0xFFF) + 2) / 3; d->m_greedy_parsing = (flags & TDEFL_GREEDY_PARSING_FLAG) != 0;
  d->m_max_probes[1] = 1 + (((flags & 0xFFF) >> 2) + 2) / 3;
  if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG)) MZ_CLEAR_OBJ(d->m_hash);
  d->m_lookahead_pos = d->m_lookahead_size = d->m_dict_size = d->m_total_lz_bytes = d->m_lz_code_buf_dict_pos = d->m_bits_in = 0;
  d->m_output_flush_ofs = d->m_output_flush_remaining = d->m_finished = d->m_block_index = d->m_bit_buffer = d->m_wants_to_finish = 0;
  d->m_pLZ_code_buf = d->m_lz_code_buf + 1; d->m_pLZ_flags = d->m_lz_code_buf; d->m_num_flags_left = 8;
  d->m_pOutput_buf = d->m_output_buf; d->m_pOutput_buf_end = d->m_output_buf; d->m_prev_return_status = TDEFL_STATUS_OKAY;
  d->m_saved_match_dist = d->m_saved_match_len = d->m_saved_lit = 0; d->m_adler32 = 1;
  d->m_pIn_buf = NULL; d->m_pOut_buf = NULL;
  d->m_pIn_buf_size = NULL; d->m_pOut_buf_size = NULL;
  d->m_flush = TDEFL_NO_FLUSH; d->m_pSrc = NULL; d->m_src_buf_left = 0; d->m_out_buf_ofs = 0;
  memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0);
  memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1);
  return TDEFL_STATUS_OKAY;
}

tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d)
{
  return d->m_prev_return_status;
}

mz_uint32 tdefl_get_adler32(tdefl_compressor *d)
{
  return d->m_adler32;
}

mz_bool tdefl_compress_mem_to_output(const void *pBuf, size_t buf_len, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)
{
  tdefl_compressor *pComp; mz_bool succeeded; if (((buf_len) && (!pBuf)) || (!pPut_buf_func)) return MZ_FALSE;
  pComp = (tdefl_compressor*)MZ_MALLOC(sizeof(tdefl_compressor)); if (!pComp) return MZ_FALSE;
  succeeded = (tdefl_init(pComp, pPut_buf_func, pPut_buf_user, flags) == TDEFL_STATUS_OKAY);
  succeeded = succeeded && (tdefl_compress_buffer(pComp, pBuf, buf_len, TDEFL_FINISH) == TDEFL_STATUS_DONE);
  MZ_FREE(pComp); return succeeded;
}

typedef struct
{
  size_t m_size, m_capacity;
  mz_uint8 *m_pBuf;
  mz_bool m_expandable;
} tdefl_output_buffer;

static mz_bool tdefl_output_buffer_putter(const void *pBuf, int len, void *pUser)
{
  tdefl_output_buffer *p = (tdefl_output_buffer *)pUser;
  size_t new_size = p->m_size + len;
  if (new_size > p->m_capacity)
  {
    size_t new_capacity = p->m_capacity; mz_uint8 *pNew_buf; if (!p->m_expandable) return MZ_FALSE;
    do { new_capacity = MZ_MAX(128U, new_capacity << 1U); } while (new_size > new_capacity);
    pNew_buf = (mz_uint8*)MZ_REALLOC(p->m_pBuf, new_capacity); if (!pNew_buf) return MZ_FALSE;
    p->m_pBuf = pNew_buf; p->m_capacity = new_capacity;
  }
  memcpy((mz_uint8*)p->m_pBuf + p->m_size, pBuf, len); p->m_size = new_size;
  return MZ_TRUE;
}

void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags)
{
  tdefl_output_buffer out_buf; MZ_CLEAR_OBJ(out_buf);
  if (!pOut_len) return MZ_FALSE; else *pOut_len = 0;
  out_buf.m_expandable = MZ_TRUE;
  if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags)) return NULL;
  *pOut_len = out_buf.m_size; return out_buf.m_pBuf;
}

size_t tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags)
{
  tdefl_output_buffer out_buf; MZ_CLEAR_OBJ(out_buf);
  if (!pOut_buf) return 0;
  out_buf.m_pBuf = (mz_uint8*)pOut_buf; out_buf.m_capacity = out_buf_len;
  if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags)) return 0;
  return out_buf.m_size;
}

#ifndef MINIZ_NO_ZLIB_APIS
static const mz_uint s_tdefl_num_probes[11] = { 0, 1, 6, 32,  16, 32, 128, 256,  512, 768, 1500 };

// level may actually range from [0,10] (10 is a "hidden" max level, where we want a bit more compression and it's fine if throughput to fall off a cliff on some files).
mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy)
{
  mz_uint comp_flags = s_tdefl_num_probes[(level >= 0) ? MZ_MIN(10, level) : MZ_DEFAULT_LEVEL] | ((level <= 3) ? TDEFL_GREEDY_PARSING_FLAG : 0);
  if (window_bits > 0) comp_flags |= TDEFL_WRITE_ZLIB_HEADER;

  if (!level) comp_flags |= TDEFL_FORCE_ALL_RAW_BLOCKS;
  else if (strategy == MZ_FILTERED) comp_flags |= TDEFL_FILTER_MATCHES;
  else if (strategy == MZ_HUFFMAN_ONLY) comp_flags &= ~TDEFL_MAX_PROBES_MASK;
  else if (strategy == MZ_FIXED) comp_flags |= TDEFL_FORCE_ALL_STATIC_BLOCKS;
  else if (strategy == MZ_RLE) comp_flags |= TDEFL_RLE_MATCHES;

  return comp_flags;
}
#endif //MINIZ_NO_ZLIB_APIS

#ifdef _MSC_VER
#pragma warning (push)
#pragma warning (disable:4204) // nonstandard extension used : non-constant aggregate initializer (also supported by GNU C and C99, so no big deal)
#endif

// Simple PNG writer function by Alex Evans, 2011. Released into the public domain: https://gist.github.com/908299, more context at
// http://altdevblogaday.org/2011/04/06/a-smaller-jpg-encoder/.
// This is actually a modification of Alex's original code so PNG files generated by this function pass pngcheck.
void *tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, int h, int num_chans, size_t *pLen_out, mz_uint level, mz_bool flip)
{
  // Using a local copy of this array here in case MINIZ_NO_ZLIB_APIS was defined.
  static const mz_uint s_tdefl_png_num_probes[11] = { 0, 1, 6, 32,  16, 32, 128, 256,  512, 768, 1500 };
  tdefl_compressor *pComp = (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor)); tdefl_output_buffer out_buf; int i, bpl = w * num_chans, y, z; mz_uint32 c; *pLen_out = 0;
  if (!pComp) return NULL;
  MZ_CLEAR_OBJ(out_buf); out_buf.m_expandable = MZ_TRUE; out_buf.m_capacity = 57+MZ_MAX(64, (1+bpl)*h); if (NULL == (out_buf.m_pBuf = (mz_uint8*)MZ_MALLOC(out_buf.m_capacity))) { MZ_FREE(pComp); return NULL; }
  // write dummy header
  for (z = 41; z; --z) tdefl_output_buffer_putter(&z, 1, &out_buf);
  // compress image data
  tdefl_init(pComp, tdefl_output_buffer_putter, &out_buf, s_tdefl_png_num_probes[MZ_MIN(10, level)] | TDEFL_WRITE_ZLIB_HEADER);
  for (y = 0; y < h; ++y) { tdefl_compress_buffer(pComp, &z, 1, TDEFL_NO_FLUSH); tdefl_compress_buffer(pComp, (mz_uint8*)pImage + (flip ? (h - 1 - y) : y) * bpl, bpl, TDEFL_NO_FLUSH); }
  if (tdefl_compress_buffer(pComp, NULL, 0, TDEFL_FINISH) != TDEFL_STATUS_DONE) { MZ_FREE(pComp); MZ_FREE(out_buf.m_pBuf); return NULL; }
  // write real header
  *pLen_out = out_buf.m_size-41;
  {
    static const mz_uint8 chans[] = {0x00, 0x00, 0x04, 0x02, 0x06};
    mz_uint8 pnghdr[41]={0x89,0x50,0x4e,0x47,0x0d,0x0a,0x1a,0x0a,0x00,0x00,0x00,0x0d,0x49,0x48,0x44,0x52,
      0,0,(mz_uint8)(w>>8),(mz_uint8)w,0,0,(mz_uint8)(h>>8),(mz_uint8)h,8,chans[num_chans],0,0,0,0,0,0,0,
      (mz_uint8)(*pLen_out>>24),(mz_uint8)(*pLen_out>>16),(mz_uint8)(*pLen_out>>8),(mz_uint8)*pLen_out,0x49,0x44,0x41,0x54};
    c=(mz_uint32)mz_crc32(MZ_CRC32_INIT,pnghdr+12,17); for (i=0; i<4; ++i, c<<=8) ((mz_uint8*)(pnghdr+29))[i]=(mz_uint8)(c>>24);
    memcpy(out_buf.m_pBuf, pnghdr, 41);
  }
  // write footer (IDAT CRC-32, followed by IEND chunk)
  if (!tdefl_output_buffer_putter("\0\0\0\0\0\0\0\0\x49\x45\x4e\x44\xae\x42\x60\x82", 16, &out_buf)) { *pLen_out = 0; MZ_FREE(pComp); MZ_FREE(out_buf.m_pBuf); return NULL; }
  c = (mz_uint32)mz_crc32(MZ_CRC32_INIT,out_buf.m_pBuf+41-4, *pLen_out+4); for (i=0; i<4; ++i, c<<=8) (out_buf.m_pBuf+out_buf.m_size-16)[i] = (mz_uint8)(c >> 24);
  // compute final size of file, grab compressed data buffer and return
  *pLen_out += 57; MZ_FREE(pComp); return out_buf.m_pBuf;
}
void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out)
{
  // Level 6 corresponds to TDEFL_DEFAULT_MAX_PROBES or MZ_DEFAULT_LEVEL (but we can't depend on MZ_DEFAULT_LEVEL being available in case the zlib API's where #defined out)
  return tdefl_write_image_to_png_file_in_memory_ex(pImage, w, h, num_chans, pLen_out, 6, MZ_FALSE);
}

#ifdef _MSC_VER
#pragma warning (pop)
#endif

// ------------------- .ZIP archive reading

#ifndef MINIZ_NO_ARCHIVE_APIS

#ifdef MINIZ_NO_STDIO
  #define MZ_FILE void *
#else
  #include <stdio.h>
  #include <sys/stat.h>

  #if defined(_MSC_VER) || defined(__MINGW64__)
    static FILE *mz_fopen(const char *pFilename, const char *pMode)
    {
      FILE* pFile = NULL;
      fopen_s(&pFile, pFilename, pMode);
      return pFile;
    }
    static FILE *mz_freopen(const char *pPath, const char *pMode, FILE *pStream)
    {
      FILE* pFile = NULL;
      if (freopen_s(&pFile, pPath, pMode, pStream))
        return NULL;
      return pFile;
    }
    #ifndef MINIZ_NO_TIME
      #include <sys/utime.h>
    #endif
    #define MZ_FILE FILE
    #define MZ_FOPEN mz_fopen
    #define MZ_FCLOSE fclose
    #define MZ_FREAD fread
    #define MZ_FWRITE fwrite
    #define MZ_FTELL64 _ftelli64
    #define MZ_FSEEK64 _fseeki64
    #define MZ_FILE_STAT_STRUCT _stat
    #define MZ_FILE_STAT _stat
    #define MZ_FFLUSH fflush
    #define MZ_FREOPEN mz_freopen
    #define MZ_DELETE_FILE remove
  #elif defined(__MINGW32__)
    #ifndef MINIZ_NO_TIME
      #include <sys/utime.h>
    #endif
    #define MZ_FILE FILE
    #define MZ_FOPEN(f, m) fopen(f, m)
    #define MZ_FCLOSE fclose
    #define MZ_FREAD fread
    #define MZ_FWRITE fwrite
    #define MZ_FTELL64 ftello64
    #define MZ_FSEEK64 fseeko64
    #define MZ_FILE_STAT_STRUCT _stat
    #define MZ_FILE_STAT _stat
    #define MZ_FFLUSH fflush
    #define MZ_FREOPEN(f, m, s) freopen(f, m, s)
    #define MZ_DELETE_FILE remove
  #elif defined(__TINYC__)
    #ifndef MINIZ_NO_TIME
      #include <sys/utime.h>
    #endif
    #define MZ_FILE FILE
    #define MZ_FOPEN(f, m) fopen(f, m)
    #define MZ_FCLOSE fclose
    #define MZ_FREAD fread
    #define MZ_FWRITE fwrite
    #define MZ_FTELL64 ftell
    #define MZ_FSEEK64 fseek
    #define MZ_FILE_STAT_STRUCT stat
    #define MZ_FILE_STAT stat
    #define MZ_FFLUSH fflush
    #define MZ_FREOPEN(f, m, s) freopen(f, m, s)
    #define MZ_DELETE_FILE remove
  #elif defined(__GNUC__) && _LARGEFILE64_SOURCE
    #ifndef MINIZ_NO_TIME
      #include <utime.h>
    #endif
    #define MZ_FILE FILE
    #define MZ_FOPEN(f, m) fopen64(f, m)
    #define MZ_FCLOSE fclose
    #define MZ_FREAD fread
    #define MZ_FWRITE fwrite
    #define MZ_FTELL64 ftello64
    #define MZ_FSEEK64 fseeko64
    #define MZ_FILE_STAT_STRUCT stat64
    #define MZ_FILE_STAT stat64
    #define MZ_FFLUSH fflush
    #define MZ_FREOPEN(p, m, s) freopen64(p, m, s)
    #define MZ_DELETE_FILE remove
  #else
    #ifndef MINIZ_NO_TIME
      #include <utime.h>
    #endif
    #define MZ_FILE FILE
    #define MZ_FOPEN(f, m) fopen(f, m)
    #define MZ_FCLOSE fclose
    #define MZ_FREAD fread
    #define MZ_FWRITE fwrite
    #define MZ_FTELL64 ftello
    #define MZ_FSEEK64 fseeko
    #define MZ_FILE_STAT_STRUCT stat
    #define MZ_FILE_STAT stat
    #define MZ_FFLUSH fflush
    #define MZ_FREOPEN(f, m, s) freopen(f, m, s)
    #define MZ_DELETE_FILE remove
  #endif // #ifdef _MSC_VER
#endif // #ifdef MINIZ_NO_STDIO

#define MZ_TOLOWER(c) ((((c) >= 'A') && ((c) <= 'Z')) ? ((c) - 'A' + 'a') : (c))

// Various ZIP archive enums. To completely avoid cross platform compiler alignment and platform endian issues, miniz.c doesn't use structs for any of this stuff.
enum
{
  // ZIP archive identifiers and record sizes
  MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06054b50, MZ_ZIP_CENTRAL_DIR_HEADER_SIG = 0x02014b50, MZ_ZIP_LOCAL_DIR_HEADER_SIG = 0x04034b50,
  MZ_ZIP_LOCAL_DIR_HEADER_SIZE = 30, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE = 46, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE = 22,
  // Central directory header record offsets
  MZ_ZIP_CDH_SIG_OFS = 0, MZ_ZIP_CDH_VERSION_MADE_BY_OFS = 4, MZ_ZIP_CDH_VERSION_NEEDED_OFS = 6, MZ_ZIP_CDH_BIT_FLAG_OFS = 8,
  MZ_ZIP_CDH_METHOD_OFS = 10, MZ_ZIP_CDH_FILE_TIME_OFS = 12, MZ_ZIP_CDH_FILE_DATE_OFS = 14, MZ_ZIP_CDH_CRC32_OFS = 16,
  MZ_ZIP_CDH_COMPRESSED_SIZE_OFS = 20, MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS = 24, MZ_ZIP_CDH_FILENAME_LEN_OFS = 28, MZ_ZIP_CDH_EXTRA_LEN_OFS = 30,
  MZ_ZIP_CDH_COMMENT_LEN_OFS = 32, MZ_ZIP_CDH_DISK_START_OFS = 34, MZ_ZIP_CDH_INTERNAL_ATTR_OFS = 36, MZ_ZIP_CDH_EXTERNAL_ATTR_OFS = 38, MZ_ZIP_CDH_LOCAL_HEADER_OFS = 42,
  // Local directory header offsets
  MZ_ZIP_LDH_SIG_OFS = 0, MZ_ZIP_LDH_VERSION_NEEDED_OFS = 4, MZ_ZIP_LDH_BIT_FLAG_OFS = 6, MZ_ZIP_LDH_METHOD_OFS = 8, MZ_ZIP_LDH_FILE_TIME_OFS = 10,
  MZ_ZIP_LDH_FILE_DATE_OFS = 12, MZ_ZIP_LDH_CRC32_OFS = 14, MZ_ZIP_LDH_COMPRESSED_SIZE_OFS = 18, MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS = 22,
  MZ_ZIP_LDH_FILENAME_LEN_OFS = 26, MZ_ZIP_LDH_EXTRA_LEN_OFS = 28,
  // End of central directory offsets
  MZ_ZIP_ECDH_SIG_OFS = 0, MZ_ZIP_ECDH_NUM_THIS_DISK_OFS = 4, MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS = 6, MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 8,
  MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS = 10, MZ_ZIP_ECDH_CDIR_SIZE_OFS = 12, MZ_ZIP_ECDH_CDIR_OFS_OFS = 16, MZ_ZIP_ECDH_COMMENT_SIZE_OFS = 20,
};

typedef struct
{
  void *m_p;
  size_t m_size, m_capacity;
  mz_uint m_element_size;
} mz_zip_array;

struct mz_zip_internal_state_tag
{
  mz_zip_array m_central_dir;
  mz_zip_array m_central_dir_offsets;
  mz_zip_array m_sorted_central_dir_offsets;
  MZ_FILE *m_pFile;
  void *m_pMem;
  size_t m_mem_size;
  size_t m_mem_capacity;
};

#define MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(array_ptr, element_size) (array_ptr)->m_element_size = element_size
#define MZ_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) ((element_type *)((array_ptr)->m_p))[index]

static MZ_FORCEINLINE void mz_zip_array_clear(mz_zip_archive *pZip, mz_zip_array *pArray)
{
  pZip->m_pFree(pZip->m_pAlloc_opaque, pArray->m_p);
  memset(pArray, 0, sizeof(mz_zip_array));
}

static mz_bool mz_zip_array_ensure_capacity(mz_zip_archive *pZip, mz_zip_array *pArray, size_t min_new_capacity, mz_uint growing)
{
  void *pNew_p; size_t new_capacity = min_new_capacity; MZ_ASSERT(pArray->m_element_size); if (pArray->m_capacity >= min_new_capacity) return MZ_TRUE;
  if (growing) { new_capacity = MZ_MAX(1, pArray->m_capacity); while (new_capacity < min_new_capacity) new_capacity *= 2; }
  if (NULL == (pNew_p = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pArray->m_p, pArray->m_element_size, new_capacity))) return MZ_FALSE;
  pArray->m_p = pNew_p; pArray->m_capacity = new_capacity;
  return MZ_TRUE;
}

static MZ_FORCEINLINE mz_bool mz_zip_array_reserve(mz_zip_archive *pZip, mz_zip_array *pArray, size_t new_capacity, mz_uint growing)
{
  if (new_capacity > pArray->m_capacity) { if (!mz_zip_array_ensure_capacity(pZip, pArray, new_capacity, growing)) return MZ_FALSE; }
  return MZ_TRUE;
}

static MZ_FORCEINLINE mz_bool mz_zip_array_resize(mz_zip_archive *pZip, mz_zip_array *pArray, size_t new_size, mz_uint growing)
{
  if (new_size > pArray->m_capacity) { if (!mz_zip_array_ensure_capacity(pZip, pArray, new_size, growing)) return MZ_FALSE; }
  pArray->m_size = new_size;
  return MZ_TRUE;
}

static MZ_FORCEINLINE mz_bool mz_zip_array_ensure_room(mz_zip_archive *pZip, mz_zip_array *pArray, size_t n)
{
  return mz_zip_array_reserve(pZip, pArray, pArray->m_size + n, MZ_TRUE);
}

static MZ_FORCEINLINE mz_bool mz_zip_array_push_back(mz_zip_archive *pZip, mz_zip_array *pArray, const void *pElements, size_t n)
{
  size_t orig_size = pArray->m_size; if (!mz_zip_array_resize(pZip, pArray, orig_size + n, MZ_TRUE)) return MZ_FALSE;
  memcpy((mz_uint8*)pArray->m_p + orig_size * pArray->m_element_size, pElements, n * pArray->m_element_size);
  return MZ_TRUE;
}

#ifndef MINIZ_NO_TIME
static time_t mz_zip_dos_to_time_t(int dos_time, int dos_date)
{
  struct tm tm;
  memset(&tm, 0, sizeof(tm)); tm.tm_isdst = -1;
  tm.tm_year = ((dos_date >> 9) & 127) + 1980 - 1900; tm.tm_mon = ((dos_date >> 5) & 15) - 1; tm.tm_mday = dos_date & 31;
  tm.tm_hour = (dos_time >> 11) & 31; tm.tm_min = (dos_time >> 5) & 63; tm.tm_sec = (dos_time << 1) & 62;
  return mktime(&tm);
}

static void mz_zip_time_to_dos_time(time_t time, mz_uint16 *pDOS_time, mz_uint16 *pDOS_date)
{
#ifdef _MSC_VER
  struct tm tm_struct;
  struct tm *tm = &tm_struct;
  errno_t err = localtime_s(tm, &time);
  if (err)
  {
    *pDOS_date = 0; *pDOS_time = 0;
    return;
  }
#else
  struct tm *tm = localtime(&time);
#endif
  *pDOS_time = (mz_uint16)(((tm->tm_hour) << 11) + ((tm->tm_min) << 5) + ((tm->tm_sec) >> 1));
  *pDOS_date = (mz_uint16)(((tm->tm_year + 1900 - 1980) << 9) + ((tm->tm_mon + 1) << 5) + tm->tm_mday);
}
#endif

#ifndef MINIZ_NO_STDIO
static mz_bool mz_zip_get_file_modified_time(const char *pFilename, mz_uint16 *pDOS_time, mz_uint16 *pDOS_date)
{
#ifdef MINIZ_NO_TIME
  (void)pFilename; *pDOS_date = *pDOS_time = 0;
#else
  struct MZ_FILE_STAT_STRUCT file_stat;
  // On Linux with x86 glibc, this call will fail on large files (>= 0x80000000 bytes) unless you compiled with _LARGEFILE64_SOURCE. Argh.
  if (MZ_FILE_STAT(pFilename, &file_stat) != 0)
    return MZ_FALSE;
  mz_zip_time_to_dos_time(file_stat.st_mtime, pDOS_time, pDOS_date);
#endif // #ifdef MINIZ_NO_TIME
  return MZ_TRUE;
}

#ifndef MINIZ_NO_TIME
static mz_bool mz_zip_set_file_times(const char *pFilename, time_t access_time, time_t modified_time)
{
  struct utimbuf t; t.actime = access_time; t.modtime = modified_time;
  return !utime(pFilename, &t);
}
#endif // #ifndef MINIZ_NO_TIME
#endif // #ifndef MINIZ_NO_STDIO

static mz_bool mz_zip_reader_init_internal(mz_zip_archive *pZip, mz_uint32 flags)
{
  (void)flags;
  if ((!pZip) || (pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID))
    return MZ_FALSE;

  if (!pZip->m_pAlloc) pZip->m_pAlloc = def_alloc_func;
  if (!pZip->m_pFree) pZip->m_pFree = def_free_func;
  if (!pZip->m_pRealloc) pZip->m_pRealloc = def_realloc_func;

  pZip->m_zip_mode = MZ_ZIP_MODE_READING;
  pZip->m_archive_size = 0;
  pZip->m_central_directory_file_ofs = 0;
  pZip->m_total_files = 0;

  if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state))))
    return MZ_FALSE;
  memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state));
  MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(mz_uint8));
  MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32));
  MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(mz_uint32));
  return MZ_TRUE;
}

static MZ_FORCEINLINE mz_bool mz_zip_reader_filename_less(const mz_zip_array *pCentral_dir_array, const mz_zip_array *pCentral_dir_offsets, mz_uint l_index, mz_uint r_index)
{
  const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, l_index)), *pE;
  const mz_uint8 *pR = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, r_index));
  mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS), r_len = MZ_READ_LE16(pR + MZ_ZIP_CDH_FILENAME_LEN_OFS);
  mz_uint8 l = 0, r = 0;
  pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE; pR += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
  pE = pL + MZ_MIN(l_len, r_len);
  while (pL < pE)
  {
    if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR)))
      break;
    pL++; pR++;
  }
  return (pL == pE) ? (l_len < r_len) : (l < r);
}

#define MZ_SWAP_UINT32(a, b) do { mz_uint32 t = a; a = b; b = t; } MZ_MACRO_END

// Heap sort of lowercased filenames, used to help accelerate plain central directory searches by mz_zip_reader_locate_file(). (Could also use qsort(), but it could allocate memory.)
static void mz_zip_reader_sort_central_dir_offsets_by_filename(mz_zip_archive *pZip)
{
  mz_zip_internal_state *pState = pZip->m_pState;
  const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets;
  const mz_zip_array *pCentral_dir = &pState->m_central_dir;
  mz_uint32 *pIndices = &MZ_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, mz_uint32, 0);
  const int size = pZip->m_total_files;
  int start = (size - 2) >> 1, end;
  while (start >= 0)
  {
    int child, root = start;
    for ( ; ; )
    {
      if ((child = (root << 1) + 1) >= size)
        break;
      child += (((child + 1) < size) && (mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1])));
      if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child]))
        break;
      MZ_SWAP_UINT32(pIndices[root], pIndices[child]); root = child;
    }
    start--;
  }

  end = size - 1;
  while (end > 0)
  {
    int child, root = 0;
    MZ_SWAP_UINT32(pIndices[end], pIndices[0]);
    for ( ; ; )
    {
      if ((child = (root << 1) + 1) >= end)
        break;
      child += (((child + 1) < end) && mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1]));
      if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child]))
        break;
      MZ_SWAP_UINT32(pIndices[root], pIndices[child]); root = child;
    }
    end--;
  }
}

static mz_bool mz_zip_reader_read_central_dir(mz_zip_archive *pZip, mz_uint32 flags)
{
  mz_uint cdir_size, num_this_disk, cdir_disk_index;
  mz_uint64 cdir_ofs;
  mz_int64 cur_file_ofs;
  const mz_uint8 *p;
  mz_uint32 buf_u32[4096 / sizeof(mz_uint32)]; mz_uint8 *pBuf = (mz_uint8 *)buf_u32;
  mz_bool sort_central_dir = ((flags & MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0);
  // Basic sanity checks - reject files which are too small, and check the first 4 bytes of the file to make sure a local header is there.
  if (pZip->m_archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
    return MZ_FALSE;
  // Find the end of central directory record by scanning the file from the end towards the beginning.
  cur_file_ofs = MZ_MAX((mz_int64)pZip->m_archive_size - (mz_int64)sizeof(buf_u32), 0);
  for ( ; ; )
  {
    int i, n = (int)MZ_MIN(sizeof(buf_u32), pZip->m_archive_size - cur_file_ofs);
    if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, n) != (mz_uint)n)
      return MZ_FALSE;
    for (i = n - 4; i >= 0; --i)
      if (MZ_READ_LE32(pBuf + i) == MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG)
        break;
    if (i >= 0)
    {
      cur_file_ofs += i;
      break;
    }
    if ((!cur_file_ofs) || ((pZip->m_archive_size - cur_file_ofs) >= (0xFFFF + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)))
      return MZ_FALSE;
    cur_file_ofs = MZ_MAX(cur_file_ofs - (sizeof(buf_u32) - 3), 0);
  }
  // Read and verify the end of central directory record.
  if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
    return MZ_FALSE;
  if ((MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_SIG_OFS) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG) ||
      ((pZip->m_total_files = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS)) != MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS)))
    return MZ_FALSE;

  num_this_disk = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_THIS_DISK_OFS);
  cdir_disk_index = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS);
  if (((num_this_disk | cdir_disk_index) != 0) && ((num_this_disk != 1) || (cdir_disk_index != 1)))
    return MZ_FALSE;

  if ((cdir_size = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_SIZE_OFS)) < pZip->m_total_files * MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)
    return MZ_FALSE;

  cdir_ofs = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_OFS_OFS);
  if ((cdir_ofs + (mz_uint64)cdir_size) > pZip->m_archive_size)
    return MZ_FALSE;

  pZip->m_central_directory_file_ofs = cdir_ofs;

  if (pZip->m_total_files)
  {
     mz_uint i, n;

    // Read the entire central directory into a heap block, and allocate another heap block to hold the unsorted central dir file record offsets, and another to hold the sorted indices.
    if ((!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir, cdir_size, MZ_FALSE)) ||
        (!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir_offsets, pZip->m_total_files, MZ_FALSE)))
      return MZ_FALSE;

    if (sort_central_dir)
    {
      if (!mz_zip_array_resize(pZip, &pZip->m_pState->m_sorted_central_dir_offsets, pZip->m_total_files, MZ_FALSE))
        return MZ_FALSE;
    }

    if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs, pZip->m_pState->m_central_dir.m_p, cdir_size) != cdir_size)
      return MZ_FALSE;

    // Now create an index into the central directory file records, do some basic sanity checking on each record, and check for zip64 entries (which are not yet supported).
    p = (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p;
    for (n = cdir_size, i = 0; i < pZip->m_total_files; ++i)
    {
      mz_uint total_header_size, comp_size, decomp_size, disk_index;
      if ((n < MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) || (MZ_READ_LE32(p) != MZ_ZIP_CENTRAL_DIR_HEADER_SIG))
        return MZ_FALSE;
      MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, i) = (mz_uint32)(p - (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p);
      if (sort_central_dir)
        MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_sorted_central_dir_offsets, mz_uint32, i) = i;
      comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
      decomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
      if (((!MZ_READ_LE32(p + MZ_ZIP_CDH_METHOD_OFS)) && (decomp_size != comp_size)) || (decomp_size && !comp_size) || (decomp_size == 0xFFFFFFFF) || (comp_size == 0xFFFFFFFF))
        return MZ_FALSE;
      disk_index = MZ_READ_LE16(p + MZ_ZIP_CDH_DISK_START_OFS);
      if ((disk_index != num_this_disk) && (disk_index != 1))
        return MZ_FALSE;
      if (((mz_uint64)MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS) + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + comp_size) > pZip->m_archive_size)
        return MZ_FALSE;
      if ((total_header_size = MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS)) > n)
        return MZ_FALSE;
      n -= total_header_size; p += total_header_size;
    }
  }

  if (sort_central_dir)
    mz_zip_reader_sort_central_dir_offsets_by_filename(pZip);

  return MZ_TRUE;
}

mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, mz_uint32 flags)
{
  if ((!pZip) || (!pZip->m_pRead))
    return MZ_FALSE;
  if (!mz_zip_reader_init_internal(pZip, flags))
    return MZ_FALSE;
  pZip->m_archive_size = size;
  if (!mz_zip_reader_read_central_dir(pZip, flags))
  {
    mz_zip_reader_end(pZip);
    return MZ_FALSE;
  }
  return MZ_TRUE;
}

static size_t mz_zip_mem_read_func(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n)
{
  mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
  size_t s = (file_ofs >= pZip->m_archive_size) ? 0 : (size_t)MZ_MIN(pZip->m_archive_size - file_ofs, n);
  memcpy(pBuf, (const mz_uint8 *)pZip->m_pState->m_pMem + file_ofs, s);
  return s;
}

mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, size_t size, mz_uint32 flags)
{
  if (!mz_zip_reader_init_internal(pZip, flags))
    return MZ_FALSE;
  pZip->m_archive_size = size;
  pZip->m_pRead = mz_zip_mem_read_func;
  pZip->m_pIO_opaque = pZip;
#ifdef __cplusplus
  pZip->m_pState->m_pMem = const_cast<void *>(pMem);
#else
  pZip->m_pState->m_pMem = (void *)pMem;
#endif
  pZip->m_pState->m_mem_size = size;
  if (!mz_zip_reader_read_central_dir(pZip, flags))
  {
    mz_zip_reader_end(pZip);
    return MZ_FALSE;
  }
  return MZ_TRUE;
}

#ifndef MINIZ_NO_STDIO
static size_t mz_zip_file_read_func(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n)
{
  mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
  mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
  if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET))))
    return 0;
  return MZ_FREAD(pBuf, 1, n, pZip->m_pState->m_pFile);
}

mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint32 flags)
{
  mz_uint64 file_size;
  MZ_FILE *pFile = MZ_FOPEN(pFilename, "rb");
  if (!pFile)
    return MZ_FALSE;
  if (MZ_FSEEK64(pFile, 0, SEEK_END))
  {
    MZ_FCLOSE(pFile);
    return MZ_FALSE;
  }
  file_size = MZ_FTELL64(pFile);
  if (!mz_zip_reader_init_internal(pZip, flags))
  {
    MZ_FCLOSE(pFile);
    return MZ_FALSE;
  }
  pZip->m_pRead = mz_zip_file_read_func;
  pZip->m_pIO_opaque = pZip;
  pZip->m_pState->m_pFile = pFile;
  pZip->m_archive_size = file_size;
  if (!mz_zip_reader_read_central_dir(pZip, flags))
  {
    mz_zip_reader_end(pZip);
    return MZ_FALSE;
  }
  return MZ_TRUE;
}
#endif // #ifndef MINIZ_NO_STDIO

mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip)
{
  return pZip ? pZip->m_total_files : 0;
}

static MZ_FORCEINLINE const mz_uint8 *mz_zip_reader_get_cdh(mz_zip_archive *pZip, mz_uint file_index)
{
  if ((!pZip) || (!pZip->m_pState) || (file_index >= pZip->m_total_files) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING))
    return NULL;
  return &MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index));
}

mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, mz_uint file_index)
{
  mz_uint m_bit_flag;
  const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index);
  if (!p)
    return MZ_FALSE;
  m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
  return (m_bit_flag & 1);
}

mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, mz_uint file_index)
{
  mz_uint filename_len, external_attr;
  const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index);
  if (!p)
    return MZ_FALSE;

  // First see if the filename ends with a '/' character.
  filename_len = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
  if (filename_len)
  {
    if (*(p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_len - 1) == '/')
      return MZ_TRUE;
  }

  // Bugfix: This code was also checking if the internal attribute was non-zero, which wasn't correct.
  // Most/all zip writers (hopefully) set DOS file/directory attributes in the low 16-bits, so check for the DOS directory flag and ignore the source OS ID in the created by field.
  // FIXME: Remove this check? Is it necessary - we already check the filename.
  external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS);
  if ((external_attr & 0x10) != 0)
    return MZ_TRUE;

  return MZ_FALSE;
}

mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, mz_zip_archive_file_stat *pStat)
{
  mz_uint n;
  const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index);
  if ((!p) || (!pStat))
    return MZ_FALSE;

  // Unpack the central directory record.
  pStat->m_file_index = file_index;
  pStat->m_central_dir_ofs = MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index);
  pStat->m_version_made_by = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS);
  pStat->m_version_needed = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_NEEDED_OFS);
  pStat->m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
  pStat->m_method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS);
#ifndef MINIZ_NO_TIME
  pStat->m_time = mz_zip_dos_to_time_t(MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_TIME_OFS), MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_DATE_OFS));
#endif
  pStat->m_crc32 = MZ_READ_LE32(p + MZ_ZIP_CDH_CRC32_OFS);
  pStat->m_comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
  pStat->m_uncomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
  pStat->m_internal_attr = MZ_READ_LE16(p + MZ_ZIP_CDH_INTERNAL_ATTR_OFS);
  pStat->m_external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS);
  pStat->m_local_header_ofs = MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS);

  // Copy as much of the filename and comment as possible.
  n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS); n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE - 1);
  memcpy(pStat->m_filename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n); pStat->m_filename[n] = '\0';

  n = MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS); n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE - 1);
  pStat->m_comment_size = n;
  memcpy(pStat->m_comment, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS), n); pStat->m_comment[n] = '\0';

  return MZ_TRUE;
}

mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, char *pFilename, mz_uint filename_buf_size)
{
  mz_uint n;
  const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index);
  if (!p) { if (filename_buf_size) pFilename[0] = '\0'; return 0; }
  n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
  if (filename_buf_size)
  {
    n = MZ_MIN(n, filename_buf_size - 1);
    memcpy(pFilename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n);
    pFilename[n] = '\0';
  }
  return n + 1;
}

static MZ_FORCEINLINE mz_bool mz_zip_reader_string_equal(const char *pA, const char *pB, mz_uint len, mz_uint flags)
{
  mz_uint i;
  if (flags & MZ_ZIP_FLAG_CASE_SENSITIVE)
    return 0 == memcmp(pA, pB, len);
  for (i = 0; i < len; ++i)
    if (MZ_TOLOWER(pA[i]) != MZ_TOLOWER(pB[i]))
      return MZ_FALSE;
  return MZ_TRUE;
}

static MZ_FORCEINLINE int mz_zip_reader_filename_compare(const mz_zip_array *pCentral_dir_array, const mz_zip_array *pCentral_dir_offsets, mz_uint l_index, const char *pR, mz_uint r_len)
{
  const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, l_index)), *pE;
  mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS);
  mz_uint8 l = 0, r = 0;
  pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
  pE = pL + MZ_MIN(l_len, r_len);
  while (pL < pE)
  {
    if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR)))
      break;
    pL++; pR++;
  }
  return (pL == pE) ? (int)(l_len - r_len) : (l - r);
}

static int mz_zip_reader_locate_file_binary_search(mz_zip_archive *pZip, const char *pFilename)
{
  mz_zip_internal_state *pState = pZip->m_pState;
  const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets;
  const mz_zip_array *pCentral_dir = &pState->m_central_dir;
  mz_uint32 *pIndices = &MZ_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, mz_uint32, 0);
  const int size = pZip->m_total_files;
  const mz_uint filename_len = (mz_uint)strlen(pFilename);
  int l = 0, h = size - 1;
  while (l <= h)
  {
    int m = (l + h) >> 1, file_index = pIndices[m], comp = mz_zip_reader_filename_compare(pCentral_dir, pCentral_dir_offsets, file_index, pFilename, filename_len);
    if (!comp)
      return file_index;
    else if (comp < 0)
      l = m + 1;
    else
      h = m - 1;
  }
  return -1;
}

int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags)
{
  mz_uint file_index; size_t name_len, comment_len;
  if ((!pZip) || (!pZip->m_pState) || (!pName) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING))
    return -1;
  if (((flags & (MZ_ZIP_FLAG_IGNORE_PATH | MZ_ZIP_FLAG_CASE_SENSITIVE)) == 0) && (!pComment) && (pZip->m_pState->m_sorted_central_dir_offsets.m_size))
    return mz_zip_reader_locate_file_binary_search(pZip, pName);
  name_len = strlen(pName); if (name_len > 0xFFFF) return -1;
  comment_len = pComment ? strlen(pComment) : 0; if (comment_len > 0xFFFF) return -1;
  for (file_index = 0; file_index < pZip->m_total_files; file_index++)
  {
    const mz_uint8 *pHeader = &MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index));
    mz_uint filename_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_FILENAME_LEN_OFS);
    const char *pFilename = (const char *)pHeader + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
    if (filename_len < name_len)
      continue;
    if (comment_len)
    {
      mz_uint file_extra_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_EXTRA_LEN_OFS), file_comment_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_COMMENT_LEN_OFS);
      const char *pFile_comment = pFilename + filename_len + file_extra_len;
      if ((file_comment_len != comment_len) || (!mz_zip_reader_string_equal(pComment, pFile_comment, file_comment_len, flags)))
        continue;
    }
    if ((flags & MZ_ZIP_FLAG_IGNORE_PATH) && (filename_len))
    {
      int ofs = filename_len - 1;
      do
      {
        if ((pFilename[ofs] == '/') || (pFilename[ofs] == '\\') || (pFilename[ofs] == ':'))
          break;
      } while (--ofs >= 0);
      ofs++;
      pFilename += ofs; filename_len -= ofs;
    }
    if ((filename_len == name_len) && (mz_zip_reader_string_equal(pName, pFilename, filename_len, flags)))
      return file_index;
  }
  return -1;
}

mz_bool mz_zip_reader_extract_to_mem_no_alloc(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size)
{
  int status = TINFL_STATUS_DONE;
  mz_uint64 needed_size, cur_file_ofs, comp_remaining, out_buf_ofs = 0, read_buf_size, read_buf_ofs = 0, read_buf_avail;
  mz_zip_archive_file_stat file_stat;
  void *pRead_buf;
  mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
  tinfl_decompressor inflator;

  if ((buf_size) && (!pBuf))
    return MZ_FALSE;

  if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
    return MZ_FALSE;

  // Empty file, or a directory (but not always a directory - I've seen odd zips with directories that have compressed data which inflates to 0 bytes)
  if (!file_stat.m_comp_size)
    return MZ_TRUE;

  // Entry is a subdirectory (I've seen old zips with dir entries which have compressed deflate data which inflates to 0 bytes, but these entries claim to uncompress to 512 bytes in the headers).
  // I'm torn how to handle this case - should it fail instead?
  if (mz_zip_reader_is_file_a_directory(pZip, file_index))
    return MZ_TRUE;

  // Encryption and patch files are not supported.
  if (file_stat.m_bit_flag & (1 | 32))
    return MZ_FALSE;

  // This function only supports stored and deflate.
  if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED))
    return MZ_FALSE;

  // Ensure supplied output buffer is large enough.
  needed_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? file_stat.m_comp_size : file_stat.m_uncomp_size;
  if (buf_size < needed_size)
    return MZ_FALSE;

  // Read and parse the local directory entry.
  cur_file_ofs = file_stat.m_local_header_ofs;
  if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
    return MZ_FALSE;
  if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
    return MZ_FALSE;

  cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
  if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
    return MZ_FALSE;

  if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method))
  {
    // The file is stored or the caller has requested the compressed data.
    if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, (size_t)needed_size) != needed_size)
      return MZ_FALSE;
    return ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) != 0) || (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) == file_stat.m_crc32);
  }

  // Decompress the file either directly from memory or from a file input buffer.
  tinfl_init(&inflator);

  if (pZip->m_pState->m_pMem)
  {
    // Read directly from the archive in memory.
    pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs;
    read_buf_size = read_buf_avail = file_stat.m_comp_size;
    comp_remaining = 0;
  }
  else if (pUser_read_buf)
  {
    // Use a user provided read buffer.
    if (!user_read_buf_size)
      return MZ_FALSE;
    pRead_buf = (mz_uint8 *)pUser_read_buf;
    read_buf_size = user_read_buf_size;
    read_buf_avail = 0;
    comp_remaining = file_stat.m_comp_size;
  }
  else
  {
    // Temporarily allocate a read buffer.
    read_buf_size = MZ_MIN(file_stat.m_comp_size, MZ_ZIP_MAX_IO_BUF_SIZE);
#ifdef _MSC_VER
    if (((0, sizeof(size_t) == sizeof(mz_uint32))) && (read_buf_size > 0x7FFFFFFF))
#else
    if (((sizeof(size_t) == sizeof(mz_uint32))) && (read_buf_size > 0x7FFFFFFF))
#endif
      return MZ_FALSE;
    if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size)))
      return MZ_FALSE;
    read_buf_avail = 0;
    comp_remaining = file_stat.m_comp_size;
  }

  do
  {
    size_t in_buf_size, out_buf_size = (size_t)(file_stat.m_uncomp_size - out_buf_ofs);
    if ((!read_buf_avail) && (!pZip->m_pState->m_pMem))
    {
      read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
      if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
      {
        status = TINFL_STATUS_FAILED;
        break;
      }
      cur_file_ofs += read_buf_avail;
      comp_remaining -= read_buf_avail;
      read_buf_ofs = 0;
    }
    in_buf_size = (size_t)read_buf_avail;
    status = tinfl_decompress(&inflator, (mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (mz_uint8 *)pBuf, (mz_uint8 *)pBuf + out_buf_ofs, &out_buf_size, TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF | (comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0));
    read_buf_avail -= in_buf_size;
    read_buf_ofs += in_buf_size;
    out_buf_ofs += out_buf_size;
  } while (status == TINFL_STATUS_NEEDS_MORE_INPUT);

  if (status == TINFL_STATUS_DONE)
  {
    // Make sure the entire file was decompressed, and check its CRC.
    if ((out_buf_ofs != file_stat.m_uncomp_size) || (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) != file_stat.m_crc32))
      status = TINFL_STATUS_FAILED;
  }

  if ((!pZip->m_pState->m_pMem) && (!pUser_read_buf))
    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);

  return status == TINFL_STATUS_DONE;
}

mz_bool mz_zip_reader_extract_file_to_mem_no_alloc(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size)
{
  int file_index = mz_zip_reader_locate_file(pZip, pFilename, NULL, flags);
  if (file_index < 0)
    return MZ_FALSE;
  return mz_zip_reader_extract_to_mem_no_alloc(pZip, file_index, pBuf, buf_size, flags, pUser_read_buf, user_read_buf_size);
}

mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags)
{
  return mz_zip_reader_extract_to_mem_no_alloc(pZip, file_index, pBuf, buf_size, flags, NULL, 0);
}

mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags)
{
  return mz_zip_reader_extract_file_to_mem_no_alloc(pZip, pFilename, pBuf, buf_size, flags, NULL, 0);
}

void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, size_t *pSize, mz_uint flags)
{
  mz_uint64 comp_size, uncomp_size, alloc_size;
  const mz_uint8 *p = mz_zip_reader_get_cdh(pZip, file_index);
  void *pBuf;

  if (pSize)
    *pSize = 0;
  if (!p)
    return NULL;

  comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
  uncomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);

  alloc_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? comp_size : uncomp_size;
#ifdef _MSC_VER
  if (((0, sizeof(size_t) == sizeof(mz_uint32))) && (alloc_size > 0x7FFFFFFF))
#else
  if (((sizeof(size_t) == sizeof(mz_uint32))) && (alloc_size > 0x7FFFFFFF))
#endif
    return NULL;
  if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)alloc_size)))
    return NULL;

  if (!mz_zip_reader_extract_to_mem(pZip, file_index, pBuf, (size_t)alloc_size, flags))
  {
    pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
    return NULL;
  }

  if (pSize) *pSize = (size_t)alloc_size;
  return pBuf;
}

void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, const char *pFilename, size_t *pSize, mz_uint flags)
{
  int file_index = mz_zip_reader_locate_file(pZip, pFilename, NULL, flags);
  if (file_index < 0)
  {
    if (pSize) *pSize = 0;
    return MZ_FALSE;
  }
  return mz_zip_reader_extract_to_heap(pZip, file_index, pSize, flags);
}

mz_bool mz_zip_reader_extract_to_callback(mz_zip_archive *pZip, mz_uint file_index, mz_file_write_func pCallback, void *pOpaque, mz_uint flags)
{
  int status = TINFL_STATUS_DONE; mz_uint file_crc32 = MZ_CRC32_INIT;
  mz_uint64 read_buf_size, read_buf_ofs = 0, read_buf_avail, comp_remaining, out_buf_ofs = 0, cur_file_ofs;
  mz_zip_archive_file_stat file_stat;
  void *pRead_buf = NULL; void *pWrite_buf = NULL;
  mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;

  if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
    return MZ_FALSE;

  // Empty file, or a directory (but not always a directory - I've seen odd zips with directories that have compressed data which inflates to 0 bytes)
  if (!file_stat.m_comp_size)
    return MZ_TRUE;

  // Entry is a subdirectory (I've seen old zips with dir entries which have compressed deflate data which inflates to 0 bytes, but these entries claim to uncompress to 512 bytes in the headers).
  // I'm torn how to handle this case - should it fail instead?
  if (mz_zip_reader_is_file_a_directory(pZip, file_index))
    return MZ_TRUE;

  // Encryption and patch files are not supported.
  if (file_stat.m_bit_flag & (1 | 32))
    return MZ_FALSE;

  // This function only supports stored and deflate.
  if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED))
    return MZ_FALSE;

  // Read and parse the local directory entry.
  cur_file_ofs = file_stat.m_local_header_ofs;
  if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
    return MZ_FALSE;
  if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
    return MZ_FALSE;

  cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
  if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
    return MZ_FALSE;

  // Decompress the file either directly from memory or from a file input buffer.
  if (pZip->m_pState->m_pMem)
  {
    pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs;
    read_buf_size = read_buf_avail = file_stat.m_comp_size;
    comp_remaining = 0;
  }
  else
  {
    read_buf_size = MZ_MIN(file_stat.m_comp_size, MZ_ZIP_MAX_IO_BUF_SIZE);
    if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size)))
      return MZ_FALSE;
    read_buf_avail = 0;
    comp_remaining = file_stat.m_comp_size;
  }

  if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method))
  {
    // The file is stored or the caller has requested the compressed data.
    if (pZip->m_pState->m_pMem)
    {
#ifdef _MSC_VER
      if (((0, sizeof(size_t) == sizeof(mz_uint32))) && (file_stat.m_comp_size > 0xFFFFFFFF))
#else
      if (((sizeof(size_t) == sizeof(mz_uint32))) && (file_stat.m_comp_size > 0xFFFFFFFF))
#endif
        return MZ_FALSE;
      if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)file_stat.m_comp_size) != file_stat.m_comp_size)
        status = TINFL_STATUS_FAILED;
      else if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
        file_crc32 = (mz_uint32)mz_crc32(file_crc32, (const mz_uint8 *)pRead_buf, (size_t)file_stat.m_comp_size);
      cur_file_ofs += file_stat.m_comp_size;
      out_buf_ofs += file_stat.m_comp_size;
      comp_remaining = 0;
    }
    else
    {
      while (comp_remaining)
      {
        read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
        if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
        {
          status = TINFL_STATUS_FAILED;
          break;
        }

        if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
          file_crc32 = (mz_uint32)mz_crc32(file_crc32, (const mz_uint8 *)pRead_buf, (size_t)read_buf_avail);

        if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
        {
          status = TINFL_STATUS_FAILED;
          break;
        }
        cur_file_ofs += read_buf_avail;
        out_buf_ofs += read_buf_avail;
        comp_remaining -= read_buf_avail;
      }
    }
  }
  else
  {
    tinfl_decompressor inflator;
    tinfl_init(&inflator);

    if (NULL == (pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, TINFL_LZ_DICT_SIZE)))
      status = TINFL_STATUS_FAILED;
    else
    {
      do
      {
        mz_uint8 *pWrite_buf_cur = (mz_uint8 *)pWrite_buf + (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
        size_t in_buf_size, out_buf_size = TINFL_LZ_DICT_SIZE - (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
        if ((!read_buf_avail) && (!pZip->m_pState->m_pMem))
        {
          read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
          if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
          {
            status = TINFL_STATUS_FAILED;
            break;
          }
          cur_file_ofs += read_buf_avail;
          comp_remaining -= read_buf_avail;
          read_buf_ofs = 0;
        }

        in_buf_size = (size_t)read_buf_avail;
        status = tinfl_decompress(&inflator, (const mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (mz_uint8 *)pWrite_buf, pWrite_buf_cur, &out_buf_size, comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0);
        read_buf_avail -= in_buf_size;
        read_buf_ofs += in_buf_size;

        if (out_buf_size)
        {
          if (pCallback(pOpaque, out_buf_ofs, pWrite_buf_cur, out_buf_size) != out_buf_size)
          {
            status = TINFL_STATUS_FAILED;
            break;
          }
          file_crc32 = (mz_uint32)mz_crc32(file_crc32, pWrite_buf_cur, out_buf_size);
          if ((out_buf_ofs += out_buf_size) > file_stat.m_uncomp_size)
          {
            status = TINFL_STATUS_FAILED;
            break;
          }
        }
      } while ((status == TINFL_STATUS_NEEDS_MORE_INPUT) || (status == TINFL_STATUS_HAS_MORE_OUTPUT));
    }
  }

  if ((status == TINFL_STATUS_DONE) && (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)))
  {
    // Make sure the entire file was decompressed, and check its CRC.
    if ((out_buf_ofs != file_stat.m_uncomp_size) || (file_crc32 != file_stat.m_crc32))
      status = TINFL_STATUS_FAILED;
  }

  if (!pZip->m_pState->m_pMem)
    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
  if (pWrite_buf)
    pZip->m_pFree(pZip->m_pAlloc_opaque, pWrite_buf);

  return status == TINFL_STATUS_DONE;
}

mz_bool mz_zip_reader_extract_file_to_callback(mz_zip_archive *pZip, const char *pFilename, mz_file_write_func pCallback, void *pOpaque, mz_uint flags)
{
  int file_index = mz_zip_reader_locate_file(pZip, pFilename, NULL, flags);
  if (file_index < 0)
    return MZ_FALSE;
  return mz_zip_reader_extract_to_callback(pZip, file_index, pCallback, pOpaque, flags);
}

#ifndef MINIZ_NO_STDIO
static size_t mz_zip_file_write_callback(void *pOpaque, mz_uint64 ofs, const void *pBuf, size_t n)
{
  (void)ofs; return MZ_FWRITE(pBuf, 1, n, (MZ_FILE*)pOpaque);
}

mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, const char *pDst_filename, mz_uint flags)
{
  mz_bool status;
  mz_zip_archive_file_stat file_stat;
  MZ_FILE *pFile;
  if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
    return MZ_FALSE;
  pFile = MZ_FOPEN(pDst_filename, "wb");
  if (!pFile)
    return MZ_FALSE;
  status = mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_file_write_callback, pFile, flags);
  if (MZ_FCLOSE(pFile) == EOF)
    return MZ_FALSE;
#ifndef MINIZ_NO_TIME
  if (status)
    mz_zip_set_file_times(pDst_filename, file_stat.m_time, file_stat.m_time);
#endif
  return status;
}
#endif // #ifndef MINIZ_NO_STDIO

mz_bool mz_zip_reader_end(mz_zip_archive *pZip)
{
  if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING))
    return MZ_FALSE;

  if (pZip->m_pState)
  {
    mz_zip_internal_state *pState = pZip->m_pState; pZip->m_pState = NULL;
    mz_zip_array_clear(pZip, &pState->m_central_dir);
    mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
    mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);

#ifndef MINIZ_NO_STDIO
    if (pState->m_pFile)
    {
      MZ_FCLOSE(pState->m_pFile);
      pState->m_pFile = NULL;
    }
#endif // #ifndef MINIZ_NO_STDIO

    pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
  }
  pZip->m_zip_mode = MZ_ZIP_MODE_INVALID;

  return MZ_TRUE;
}

#ifndef MINIZ_NO_STDIO
mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, mz_uint flags)
{
  int file_index = mz_zip_reader_locate_file(pZip, pArchive_filename, NULL, flags);
  if (file_index < 0)
    return MZ_FALSE;
  return mz_zip_reader_extract_to_file(pZip, file_index, pDst_filename, flags);
}
#endif

// ------------------- .ZIP archive writing

#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS

static void mz_write_le16(mz_uint8 *p, mz_uint16 v) { p[0] = (mz_uint8)v; p[1] = (mz_uint8)(v >> 8); }
static void mz_write_le32(mz_uint8 *p, mz_uint32 v) { p[0] = (mz_uint8)v; p[1] = (mz_uint8)(v >> 8); p[2] = (mz_uint8)(v >> 16); p[3] = (mz_uint8)(v >> 24); }
#define MZ_WRITE_LE16(p, v) mz_write_le16((mz_uint8 *)(p), (mz_uint16)(v))
#define MZ_WRITE_LE32(p, v) mz_write_le32((mz_uint8 *)(p), (mz_uint32)(v))

mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size)
{
  if ((!pZip) || (pZip->m_pState) || (!pZip->m_pWrite) || (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID))
    return MZ_FALSE;

  if (pZip->m_file_offset_alignment)
  {
    // Ensure user specified file offset alignment is a power of 2.
    if (pZip->m_file_offset_alignment & (pZip->m_file_offset_alignment - 1))
      return MZ_FALSE;
  }

  if (!pZip->m_pAlloc) pZip->m_pAlloc = def_alloc_func;
  if (!pZip->m_pFree) pZip->m_pFree = def_free_func;
  if (!pZip->m_pRealloc) pZip->m_pRealloc = def_realloc_func;

  pZip->m_zip_mode = MZ_ZIP_MODE_WRITING;
  pZip->m_archive_size = existing_size;
  pZip->m_central_directory_file_ofs = 0;
  pZip->m_total_files = 0;

  if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state))))
    return MZ_FALSE;
  memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state));
  MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(mz_uint8));
  MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32));
  MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(mz_uint32));
  return MZ_TRUE;
}

static size_t mz_zip_heap_write_func(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n)
{
  mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
  mz_zip_internal_state *pState = pZip->m_pState;
  mz_uint64 new_size = MZ_MAX(file_ofs + n, pState->m_mem_size);
#ifdef _MSC_VER
  if ((!n) || ((0, sizeof(size_t) == sizeof(mz_uint32)) && (new_size > 0x7FFFFFFF)))
#else
  if ((!n) || ((sizeof(size_t) == sizeof(mz_uint32)) && (new_size > 0x7FFFFFFF)))
#endif
    return 0;
  if (new_size > pState->m_mem_capacity)
  {
    void *pNew_block;
    size_t new_capacity = MZ_MAX(64, pState->m_mem_capacity); while (new_capacity < new_size) new_capacity *= 2;
    if (NULL == (pNew_block = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pState->m_pMem, 1, new_capacity)))
      return 0;
    pState->m_pMem = pNew_block; pState->m_mem_capacity = new_capacity;
  }
  memcpy((mz_uint8 *)pState->m_pMem + file_ofs, pBuf, n);
  pState->m_mem_size = (size_t)new_size;
  return n;
}

mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size)
{
  pZip->m_pWrite = mz_zip_heap_write_func;
  pZip->m_pIO_opaque = pZip;
  if (!mz_zip_writer_init(pZip, size_to_reserve_at_beginning))
    return MZ_FALSE;
  if (0 != (initial_allocation_size = MZ_MAX(initial_allocation_size, size_to_reserve_at_beginning)))
  {
    if (NULL == (pZip->m_pState->m_pMem = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, initial_allocation_size)))
    {
      mz_zip_writer_end(pZip);
      return MZ_FALSE;
    }
    pZip->m_pState->m_mem_capacity = initial_allocation_size;
  }
  return MZ_TRUE;
}

#ifndef MINIZ_NO_STDIO
static size_t mz_zip_file_write_func(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n)
{
  mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
  mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
  if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET))))
    return 0;
  return MZ_FWRITE(pBuf, 1, n, pZip->m_pState->m_pFile);
}

mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning)
{
  MZ_FILE *pFile;
  pZip->m_pWrite = mz_zip_file_write_func;
  pZip->m_pIO_opaque = pZip;
  if (!mz_zip_writer_init(pZip, size_to_reserve_at_beginning))
    return MZ_FALSE;
  if (NULL == (pFile = MZ_FOPEN(pFilename, "wb")))
  {
    mz_zip_writer_end(pZip);
    return MZ_FALSE;
  }
  pZip->m_pState->m_pFile = pFile;
  if (size_to_reserve_at_beginning)
  {
    mz_uint64 cur_ofs = 0; char buf[4096]; MZ_CLEAR_OBJ(buf);
    do
    {
      size_t n = (size_t)MZ_MIN(sizeof(buf), size_to_reserve_at_beginning);
      if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_ofs, buf, n) != n)
      {
        mz_zip_writer_end(pZip);
        return MZ_FALSE;
      }
      cur_ofs += n; size_to_reserve_at_beginning -= n;
    } while (size_to_reserve_at_beginning);
  }
  return MZ_TRUE;
}
#endif // #ifndef MINIZ_NO_STDIO

mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, const char *pFilename)
{
  mz_zip_internal_state *pState;
  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING))
    return MZ_FALSE;
  // No sense in trying to write to an archive that's already at the support max size
  if ((pZip->m_total_files == 0xFFFF) || ((pZip->m_archive_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_ZIP_LOCAL_DIR_HEADER_SIZE) > 0xFFFFFFFF))
    return MZ_FALSE;

  pState = pZip->m_pState;

  if (pState->m_pFile)
  {
#ifdef MINIZ_NO_STDIO
    pFilename; return MZ_FALSE;
#else
    // Archive is being read from stdio - try to reopen as writable.
    if (pZip->m_pIO_opaque != pZip)
      return MZ_FALSE;
    if (!pFilename)
      return MZ_FALSE;
    pZip->m_pWrite = mz_zip_file_write_func;
    if (NULL == (pState->m_pFile = MZ_FREOPEN(pFilename, "r+b", pState->m_pFile)))
    {
      // The mz_zip_archive is now in a bogus state because pState->m_pFile is NULL, so just close it.
      mz_zip_reader_end(pZip);
      return MZ_FALSE;
    }
#endif // #ifdef MINIZ_NO_STDIO
  }
  else if (pState->m_pMem)
  {
    // Archive lives in a memory block. Assume it's from the heap that we can resize using the realloc callback.
    if (pZip->m_pIO_opaque != pZip)
      return MZ_FALSE;
    pState->m_mem_capacity = pState->m_mem_size;
    pZip->m_pWrite = mz_zip_heap_write_func;
  }
  // Archive is being read via a user provided read function - make sure the user has specified a write function too.
  else if (!pZip->m_pWrite)
    return MZ_FALSE;

  // Start writing new files at the archive's current central directory location.
  pZip->m_archive_size = pZip->m_central_directory_file_ofs;
  pZip->m_zip_mode = MZ_ZIP_MODE_WRITING;
  pZip->m_central_directory_file_ofs = 0;

  return MZ_TRUE;
}

mz_bool mz_zip_writer_add_mem(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, mz_uint level_and_flags)
{
  return mz_zip_writer_add_mem_ex(pZip, pArchive_name, pBuf, buf_size, NULL, 0, level_and_flags, 0, 0);
}

typedef struct
{
  mz_zip_archive *m_pZip;
  mz_uint64 m_cur_archive_file_ofs;
  mz_uint64 m_comp_size;
} mz_zip_writer_add_state;

static mz_bool mz_zip_writer_add_put_buf_callback(const void* pBuf, int len, void *pUser)
{
  mz_zip_writer_add_state *pState = (mz_zip_writer_add_state *)pUser;
  if ((int)pState->m_pZip->m_pWrite(pState->m_pZip->m_pIO_opaque, pState->m_cur_archive_file_ofs, pBuf, len) != len)
    return MZ_FALSE;
  pState->m_cur_archive_file_ofs += len;
  pState->m_comp_size += len;
  return MZ_TRUE;
}

static mz_bool mz_zip_writer_create_local_dir_header(mz_zip_archive *pZip, mz_uint8 *pDst, mz_uint16 filename_size, mz_uint16 extra_size, mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date)
{
  (void)pZip;
  memset(pDst, 0, MZ_ZIP_LOCAL_DIR_HEADER_SIZE);
  MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_SIG_OFS, MZ_ZIP_LOCAL_DIR_HEADER_SIG);
  MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_VERSION_NEEDED_OFS, method ? 20 : 0);
  MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_BIT_FLAG_OFS, bit_flags);
  MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_METHOD_OFS, method);
  MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_TIME_OFS, dos_time);
  MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_DATE_OFS, dos_date);
  MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_CRC32_OFS, uncomp_crc32);
  MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS, comp_size);
  MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS, uncomp_size);
  MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILENAME_LEN_OFS, filename_size);
  MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_EXTRA_LEN_OFS, extra_size);
  return MZ_TRUE;
}

static mz_bool mz_zip_writer_create_central_dir_header(mz_zip_archive *pZip, mz_uint8 *pDst, mz_uint16 filename_size, mz_uint16 extra_size, mz_uint16 comment_size, mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date, mz_uint64 local_header_ofs, mz_uint32 ext_attributes)
{
  (void)pZip;
  memset(pDst, 0, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE);
  MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_SIG_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIG);
  MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_VERSION_NEEDED_OFS, method ? 20 : 0);
  MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_BIT_FLAG_OFS, bit_flags);
  MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_METHOD_OFS, method);
  MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_TIME_OFS, dos_time);
  MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_DATE_OFS, dos_date);
  MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_CRC32_OFS, uncomp_crc32);
  MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, comp_size);
  MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, uncomp_size);
  MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILENAME_LEN_OFS, filename_size);
  MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_EXTRA_LEN_OFS, extra_size);
  MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_COMMENT_LEN_OFS, comment_size);
  MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS, ext_attributes);
  MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_LOCAL_HEADER_OFS, local_header_ofs);
  return MZ_TRUE;
}

static mz_bool mz_zip_writer_add_to_central_dir(mz_zip_archive *pZip, const char *pFilename, mz_uint16 filename_size, const void *pExtra, mz_uint16 extra_size, const void *pComment, mz_uint16 comment_size, mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date, mz_uint64 local_header_ofs, mz_uint32 ext_attributes)
{
  mz_zip_internal_state *pState = pZip->m_pState;
  mz_uint32 central_dir_ofs = (mz_uint32)pState->m_central_dir.m_size;
  size_t orig_central_dir_size = pState->m_central_dir.m_size;
  mz_uint8 central_dir_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE];

  // No zip64 support yet
  if ((local_header_ofs > 0xFFFFFFFF) || (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + extra_size + comment_size) > 0xFFFFFFFF))
    return MZ_FALSE;

  if (!mz_zip_writer_create_central_dir_header(pZip, central_dir_header, filename_size, extra_size, comment_size, uncomp_size, comp_size, uncomp_crc32, method, bit_flags, dos_time, dos_date, local_header_ofs, ext_attributes))
    return MZ_FALSE;

  if ((!mz_zip_array_push_back(pZip, &pState->m_central_dir, central_dir_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) ||
      (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pFilename, filename_size)) ||
      (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pExtra, extra_size)) ||
      (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pComment, comment_size)) ||
      (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &central_dir_ofs, 1)))
  {
    // Try to push the central directory array back into its original state.
    mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
    return MZ_FALSE;
  }

  return MZ_TRUE;
}

static mz_bool mz_zip_writer_validate_archive_name(const char *pArchive_name)
{
  // Basic ZIP archive filename validity checks: Valid filenames cannot start with a forward slash, cannot contain a drive letter, and cannot use DOS-style backward slashes.
  if (*pArchive_name == '/')
    return MZ_FALSE;
  while (*pArchive_name)
  {
    if ((*pArchive_name == '\\') || (*pArchive_name == ':'))
      return MZ_FALSE;
    pArchive_name++;
  }
  return MZ_TRUE;
}

static mz_uint mz_zip_writer_compute_padding_needed_for_file_alignment(mz_zip_archive *pZip)
{
  mz_uint32 n;
  if (!pZip->m_file_offset_alignment)
    return 0;
  n = (mz_uint32)(pZip->m_archive_size & (pZip->m_file_offset_alignment - 1));
  return (pZip->m_file_offset_alignment - n) & (pZip->m_file_offset_alignment - 1);
}

static mz_bool mz_zip_writer_write_zeros(mz_zip_archive *pZip, mz_uint64 cur_file_ofs, mz_uint32 n)
{
  char buf[4096];
  memset(buf, 0, MZ_MIN(sizeof(buf), n));
  while (n)
  {
    mz_uint32 s = MZ_MIN(sizeof(buf), n);
    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_file_ofs, buf, s) != s)
      return MZ_FALSE;
    cur_file_ofs += s; n -= s;
  }
  return MZ_TRUE;
}

mz_bool mz_zip_writer_add_mem_ex(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, mz_uint64 uncomp_size, mz_uint32 uncomp_crc32)
{
  mz_uint16 method = 0, dos_time = 0, dos_date = 0;
  mz_uint level, ext_attributes = 0, num_alignment_padding_bytes;
  mz_uint64 local_dir_header_ofs = pZip->m_archive_size, cur_archive_file_ofs = pZip->m_archive_size, comp_size = 0;
  size_t archive_name_size;
  mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
  tdefl_compressor *pComp = NULL;
  mz_bool store_data_uncompressed;
  mz_zip_internal_state *pState;

  if ((int)level_and_flags < 0)
    level_and_flags = MZ_DEFAULT_LEVEL;
  level = level_and_flags & 0xF;
  store_data_uncompressed = ((!level) || (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA));

  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || ((buf_size) && (!pBuf)) || (!pArchive_name) || ((comment_size) && (!pComment)) || (pZip->m_total_files == 0xFFFF) || (level > MZ_UBER_COMPRESSION))
    return MZ_FALSE;

  pState = pZip->m_pState;

  if ((!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (uncomp_size))
    return MZ_FALSE;
  // No zip64 support yet
  if ((buf_size > 0xFFFFFFFF) || (uncomp_size > 0xFFFFFFFF))
    return MZ_FALSE;
  if (!mz_zip_writer_validate_archive_name(pArchive_name))
    return MZ_FALSE;

#ifndef MINIZ_NO_TIME
  {
    time_t cur_time; time(&cur_time);
    mz_zip_time_to_dos_time(cur_time, &dos_time, &dos_date);
  }
#endif // #ifndef MINIZ_NO_TIME

  archive_name_size = strlen(pArchive_name);
  if (archive_name_size > 0xFFFF)
    return MZ_FALSE;

  num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);

  // no zip64 support yet
  if ((pZip->m_total_files == 0xFFFF) || ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + comment_size + archive_name_size) > 0xFFFFFFFF))
    return MZ_FALSE;

  if ((archive_name_size) && (pArchive_name[archive_name_size - 1] == '/'))
  {
    // Set DOS Subdirectory attribute bit.
    ext_attributes |= 0x10;
    // Subdirectories cannot contain data.
    if ((buf_size) || (uncomp_size))
      return MZ_FALSE;
  }

  // Try to do any allocations before writing to the archive, so if an allocation fails the file remains unmodified. (A good idea if we're doing an in-place modification.)
  if ((!mz_zip_array_ensure_room(pZip, &pState->m_central_dir, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size)) || (!mz_zip_array_ensure_room(pZip, &pState->m_central_dir_offsets, 1)))
    return MZ_FALSE;

  if ((!store_data_uncompressed) && (buf_size))
  {
    if (NULL == (pComp = (tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor))))
      return MZ_FALSE;
  }

  if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes + sizeof(local_dir_header)))
  {
    pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
    return MZ_FALSE;
  }
  local_dir_header_ofs += num_alignment_padding_bytes;
  if (pZip->m_file_offset_alignment) { MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0); }
  cur_archive_file_ofs += num_alignment_padding_bytes + sizeof(local_dir_header);

  MZ_CLEAR_OBJ(local_dir_header);
  if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
  {
    pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
    return MZ_FALSE;
  }
  cur_archive_file_ofs += archive_name_size;

  if (!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
  {
    uncomp_crc32 = (mz_uint32)mz_crc32(MZ_CRC32_INIT, (const mz_uint8*)pBuf, buf_size);
    uncomp_size = buf_size;
    if (uncomp_size <= 3)
    {
      level = 0;
      store_data_uncompressed = MZ_TRUE;
    }
  }

  if (store_data_uncompressed)
  {
    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pBuf, buf_size) != buf_size)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
      return MZ_FALSE;
    }

    cur_archive_file_ofs += buf_size;
    comp_size = buf_size;

    if (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)
      method = MZ_DEFLATED;
  }
  else if (buf_size)
  {
    mz_zip_writer_add_state state;

    state.m_pZip = pZip;
    state.m_cur_archive_file_ofs = cur_archive_file_ofs;
    state.m_comp_size = 0;

    if ((tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, tdefl_create_comp_flags_from_zip_params(level, -15, MZ_DEFAULT_STRATEGY)) != TDEFL_STATUS_OKAY) ||
        (tdefl_compress_buffer(pComp, pBuf, buf_size, TDEFL_FINISH) != TDEFL_STATUS_DONE))
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
      return MZ_FALSE;
    }

    comp_size = state.m_comp_size;
    cur_archive_file_ofs = state.m_cur_archive_file_ofs;

    method = MZ_DEFLATED;
  }

  pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
  pComp = NULL;

  // no zip64 support yet
  if ((comp_size > 0xFFFFFFFF) || (cur_archive_file_ofs > 0xFFFFFFFF))
    return MZ_FALSE;

  if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, 0, uncomp_size, comp_size, uncomp_crc32, method, 0, dos_time, dos_date))
    return MZ_FALSE;

  if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
    return MZ_FALSE;

  if (!mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (mz_uint16)archive_name_size, NULL, 0, pComment, comment_size, uncomp_size, comp_size, uncomp_crc32, method, 0, dos_time, dos_date, local_dir_header_ofs, ext_attributes))
    return MZ_FALSE;

  pZip->m_total_files++;
  pZip->m_archive_size = cur_archive_file_ofs;

  return MZ_TRUE;
}

#ifndef MINIZ_NO_STDIO
mz_bool mz_zip_writer_add_file(mz_zip_archive *pZip, const char *pArchive_name, const char *pSrc_filename, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags)
{
  mz_uint uncomp_crc32 = MZ_CRC32_INIT, level, num_alignment_padding_bytes;
  mz_uint16 method = 0, dos_time = 0, dos_date = 0, ext_attributes = 0;
  mz_uint64 local_dir_header_ofs = pZip->m_archive_size, cur_archive_file_ofs = pZip->m_archive_size, uncomp_size = 0, comp_size = 0;
  size_t archive_name_size;
  mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
  MZ_FILE *pSrc_file = NULL;

  if ((int)level_and_flags < 0)
    level_and_flags = MZ_DEFAULT_LEVEL;
  level = level_and_flags & 0xF;

  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pArchive_name) || ((comment_size) && (!pComment)) || (level > MZ_UBER_COMPRESSION))
    return MZ_FALSE;
  if (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)
    return MZ_FALSE;
  if (!mz_zip_writer_validate_archive_name(pArchive_name))
    return MZ_FALSE;

  archive_name_size = strlen(pArchive_name);
  if (archive_name_size > 0xFFFF)
    return MZ_FALSE;

  num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);

  // no zip64 support yet
  if ((pZip->m_total_files == 0xFFFF) || ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + comment_size + archive_name_size) > 0xFFFFFFFF))
    return MZ_FALSE;

  if (!mz_zip_get_file_modified_time(pSrc_filename, &dos_time, &dos_date))
    return MZ_FALSE;
    
  pSrc_file = MZ_FOPEN(pSrc_filename, "rb");
  if (!pSrc_file)
    return MZ_FALSE;
  MZ_FSEEK64(pSrc_file, 0, SEEK_END);
  uncomp_size = MZ_FTELL64(pSrc_file);
  MZ_FSEEK64(pSrc_file, 0, SEEK_SET);

  if (uncomp_size > 0xFFFFFFFF)
  {
    // No zip64 support yet
    MZ_FCLOSE(pSrc_file);
    return MZ_FALSE;
  }
  if (uncomp_size <= 3)
    level = 0;

  if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes + sizeof(local_dir_header)))
  {
    MZ_FCLOSE(pSrc_file);
    return MZ_FALSE;
  }
  local_dir_header_ofs += num_alignment_padding_bytes;
  if (pZip->m_file_offset_alignment) { MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0); }
  cur_archive_file_ofs += num_alignment_padding_bytes + sizeof(local_dir_header);

  MZ_CLEAR_OBJ(local_dir_header);
  if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
  {
    MZ_FCLOSE(pSrc_file);
    return MZ_FALSE;
  }
  cur_archive_file_ofs += archive_name_size;

  if (uncomp_size)
  {
    mz_uint64 uncomp_remaining = uncomp_size;
    void *pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, MZ_ZIP_MAX_IO_BUF_SIZE);
    if (!pRead_buf)
    {
      MZ_FCLOSE(pSrc_file);
      return MZ_FALSE;
    }

    if (!level)
    {
      while (uncomp_remaining)
      {
        mz_uint n = (mz_uint)MZ_MIN(MZ_ZIP_MAX_IO_BUF_SIZE, uncomp_remaining);
        if ((MZ_FREAD(pRead_buf, 1, n, pSrc_file) != n) || (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pRead_buf, n) != n))
        {
          pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
          MZ_FCLOSE(pSrc_file);
          return MZ_FALSE;
        }
        uncomp_crc32 = (mz_uint32)mz_crc32(uncomp_crc32, (const mz_uint8 *)pRead_buf, n);
        uncomp_remaining -= n;
        cur_archive_file_ofs += n;
      }
      comp_size = uncomp_size;
    }
    else
    {
      mz_bool result = MZ_FALSE;
      mz_zip_writer_add_state state;
      tdefl_compressor *pComp = (tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor));
      if (!pComp)
      {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
        MZ_FCLOSE(pSrc_file);
        return MZ_FALSE;
      }

      state.m_pZip = pZip;
      state.m_cur_archive_file_ofs = cur_archive_file_ofs;
      state.m_comp_size = 0;

      if (tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, tdefl_create_comp_flags_from_zip_params(level, -15, MZ_DEFAULT_STRATEGY)) != TDEFL_STATUS_OKAY)
      {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
        MZ_FCLOSE(pSrc_file);
        return MZ_FALSE;
      }

      for ( ; ; )
      {
        size_t in_buf_size = (mz_uint32)MZ_MIN(uncomp_remaining, MZ_ZIP_MAX_IO_BUF_SIZE);
        tdefl_status status;

        if (MZ_FREAD(pRead_buf, 1, in_buf_size, pSrc_file) != in_buf_size)
          break;

        uncomp_crc32 = (mz_uint32)mz_crc32(uncomp_crc32, (const mz_uint8 *)pRead_buf, in_buf_size);
        uncomp_remaining -= in_buf_size;

        status = tdefl_compress_buffer(pComp, pRead_buf, in_buf_size, uncomp_remaining ? TDEFL_NO_FLUSH : TDEFL_FINISH);
        if (status == TDEFL_STATUS_DONE)
        {
          result = MZ_TRUE;
          break;
        }
        else if (status != TDEFL_STATUS_OKAY)
          break;
      }

      pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);

      if (!result)
      {
        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
        MZ_FCLOSE(pSrc_file);
        return MZ_FALSE;
      }

      comp_size = state.m_comp_size;
      cur_archive_file_ofs = state.m_cur_archive_file_ofs;

      method = MZ_DEFLATED;
    }

    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
  }

  MZ_FCLOSE(pSrc_file); pSrc_file = NULL;

  // no zip64 support yet
  if ((comp_size > 0xFFFFFFFF) || (cur_archive_file_ofs > 0xFFFFFFFF))
    return MZ_FALSE;

  if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, 0, uncomp_size, comp_size, uncomp_crc32, method, 0, dos_time, dos_date))
    return MZ_FALSE;

  if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
    return MZ_FALSE;

  if (!mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (mz_uint16)archive_name_size, NULL, 0, pComment, comment_size, uncomp_size, comp_size, uncomp_crc32, method, 0, dos_time, dos_date, local_dir_header_ofs, ext_attributes))
    return MZ_FALSE;

  pZip->m_total_files++;
  pZip->m_archive_size = cur_archive_file_ofs;

  return MZ_TRUE;
}
#endif // #ifndef MINIZ_NO_STDIO

mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *pSource_zip, mz_uint file_index)
{
  mz_uint n, bit_flags, num_alignment_padding_bytes;
  mz_uint64 comp_bytes_remaining, local_dir_header_ofs;
  mz_uint64 cur_src_file_ofs, cur_dst_file_ofs;
  mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
  mz_uint8 central_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE];
  size_t orig_central_dir_size;
  mz_zip_internal_state *pState;
  void *pBuf; const mz_uint8 *pSrc_central_header;

  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING))
    return MZ_FALSE;
  if (NULL == (pSrc_central_header = mz_zip_reader_get_cdh(pSource_zip, file_index)))
    return MZ_FALSE;
  pState = pZip->m_pState;

  num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);

  // no zip64 support yet
  if ((pZip->m_total_files == 0xFFFF) || ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) > 0xFFFFFFFF))
    return MZ_FALSE;

  cur_src_file_ofs = MZ_READ_LE32(pSrc_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS);
  cur_dst_file_ofs = pZip->m_archive_size;

  if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
    return MZ_FALSE;
  if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
    return MZ_FALSE;
  cur_src_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE;

  if (!mz_zip_writer_write_zeros(pZip, cur_dst_file_ofs, num_alignment_padding_bytes))
    return MZ_FALSE;
  cur_dst_file_ofs += num_alignment_padding_bytes;
  local_dir_header_ofs = cur_dst_file_ofs;
  if (pZip->m_file_offset_alignment) { MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0); }

  if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
    return MZ_FALSE;
  cur_dst_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE;

  n = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
  comp_bytes_remaining = n + MZ_READ_LE32(pSrc_central_header + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);

  if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)MZ_MAX(sizeof(mz_uint32) * 4, MZ_MIN(MZ_ZIP_MAX_IO_BUF_SIZE, comp_bytes_remaining)))))
    return MZ_FALSE;

  while (comp_bytes_remaining)
  {
    n = (mz_uint)MZ_MIN(MZ_ZIP_MAX_IO_BUF_SIZE, comp_bytes_remaining);
    if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, n) != n)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
      return MZ_FALSE;
    }
    cur_src_file_ofs += n;

    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
      return MZ_FALSE;
    }
    cur_dst_file_ofs += n;

    comp_bytes_remaining -= n;
  }

  bit_flags = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_BIT_FLAG_OFS);
  if (bit_flags & 8)
  {
    // Copy data descriptor
    if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, sizeof(mz_uint32) * 4) != sizeof(mz_uint32) * 4)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
      return MZ_FALSE;
    }

    n = sizeof(mz_uint32) * ((MZ_READ_LE32(pBuf) == 0x08074b50) ? 4 : 3);
    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n)
    {
      pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
      return MZ_FALSE;
    }

    cur_src_file_ofs += n;
    cur_dst_file_ofs += n;
  }
  pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);

  // no zip64 support yet
  if (cur_dst_file_ofs > 0xFFFFFFFF)
    return MZ_FALSE;

  orig_central_dir_size = pState->m_central_dir.m_size;

  memcpy(central_header, pSrc_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE);
  MZ_WRITE_LE32(central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS, local_dir_header_ofs);
  if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE))
    return MZ_FALSE;

  n = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_EXTRA_LEN_OFS) + MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_COMMENT_LEN_OFS);
  if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n))
  {
    mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
    return MZ_FALSE;
  }

  if (pState->m_central_dir.m_size > 0xFFFFFFFF)
    return MZ_FALSE;
  n = (mz_uint32)orig_central_dir_size;
  if (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &n, 1))
  {
    mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
    return MZ_FALSE;
  }

  pZip->m_total_files++;
  pZip->m_archive_size = cur_dst_file_ofs;

  return MZ_TRUE;
}

mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip)
{
  mz_zip_internal_state *pState;
  mz_uint64 central_dir_ofs, central_dir_size;
  mz_uint8 hdr[MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE];

  if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING))
    return MZ_FALSE;

  pState = pZip->m_pState;

  // no zip64 support yet
  if ((pZip->m_total_files > 0xFFFF) || ((pZip->m_archive_size + pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) > 0xFFFFFFFF))
    return MZ_FALSE;

  central_dir_ofs = 0;
  central_dir_size = 0;
  if (pZip->m_total_files)
  {
    // Write central directory
    central_dir_ofs = pZip->m_archive_size;
    central_dir_size = pState->m_central_dir.m_size;
    pZip->m_central_directory_file_ofs = central_dir_ofs;
    if (pZip->m_pWrite(pZip->m_pIO_opaque, central_dir_ofs, pState->m_central_dir.m_p, (size_t)central_dir_size) != central_dir_size)
      return MZ_FALSE;
    pZip->m_archive_size += central_dir_size;
  }

  // Write end of central directory record
  MZ_CLEAR_OBJ(hdr);
  MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_SIG_OFS, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG);
  MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, pZip->m_total_files);
  MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS, pZip->m_total_files);
  MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_SIZE_OFS, central_dir_size);
  MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_OFS_OFS, central_dir_ofs);

  if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, sizeof(hdr)) != sizeof(hdr))
    return MZ_FALSE;
#ifndef MINIZ_NO_STDIO
  if ((pState->m_pFile) && (MZ_FFLUSH(pState->m_pFile) == EOF))
    return MZ_FALSE;
#endif // #ifndef MINIZ_NO_STDIO

  pZip->m_archive_size += sizeof(hdr);

  pZip->m_zip_mode = MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED;
  return MZ_TRUE;
}

mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **pBuf, size_t *pSize)
{
  if ((!pZip) || (!pZip->m_pState) || (!pBuf) || (!pSize))
    return MZ_FALSE;
  if (pZip->m_pWrite != mz_zip_heap_write_func)
    return MZ_FALSE;
  if (!mz_zip_writer_finalize_archive(pZip))
    return MZ_FALSE;

  *pBuf = pZip->m_pState->m_pMem;
  *pSize = pZip->m_pState->m_mem_size;
  pZip->m_pState->m_pMem = NULL;
  pZip->m_pState->m_mem_size = pZip->m_pState->m_mem_capacity = 0;
  return MZ_TRUE;
}

mz_bool mz_zip_writer_end(mz_zip_archive *pZip)
{
  mz_zip_internal_state *pState;
  mz_bool status = MZ_TRUE;
  if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || ((pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) && (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED)))
    return MZ_FALSE;

  pState = pZip->m_pState;
  pZip->m_pState = NULL;
  mz_zip_array_clear(pZip, &pState->m_central_dir);
  mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
  mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);

#ifndef MINIZ_NO_STDIO
  if (pState->m_pFile)
  {
    MZ_FCLOSE(pState->m_pFile);
    pState->m_pFile = NULL;
  }
#endif // #ifndef MINIZ_NO_STDIO

  if ((pZip->m_pWrite == mz_zip_heap_write_func) && (pState->m_pMem))
  {
    pZip->m_pFree(pZip->m_pAlloc_opaque, pState->m_pMem);
    pState->m_pMem = NULL;
  }

  pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
  pZip->m_zip_mode = MZ_ZIP_MODE_INVALID;
  return status;
}

#ifndef MINIZ_NO_STDIO
mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags)
{
  mz_bool status, created_new_archive = MZ_FALSE;
  mz_zip_archive zip_archive;
  struct MZ_FILE_STAT_STRUCT file_stat;
  MZ_CLEAR_OBJ(zip_archive);
  if ((int)level_and_flags < 0)
     level_and_flags = MZ_DEFAULT_LEVEL;
  if ((!pZip_filename) || (!pArchive_name) || ((buf_size) && (!pBuf)) || ((comment_size) && (!pComment)) || ((level_and_flags & 0xF) > MZ_UBER_COMPRESSION))
    return MZ_FALSE;
  if (!mz_zip_writer_validate_archive_name(pArchive_name))
    return MZ_FALSE;
  if (MZ_FILE_STAT(pZip_filename, &file_stat) != 0)
  {
    // Create a new archive.
    if (!mz_zip_writer_init_file(&zip_archive, pZip_filename, 0))
      return MZ_FALSE;
    created_new_archive = MZ_TRUE;
  }
  else
  {
    // Append to an existing archive.
    if (!mz_zip_reader_init_file(&zip_archive, pZip_filename, level_and_flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY))
      return MZ_FALSE;
    if (!mz_zip_writer_init_from_reader(&zip_archive, pZip_filename))
    {
      mz_zip_reader_end(&zip_archive);
      return MZ_FALSE;
    }
  }
  status = mz_zip_writer_add_mem_ex(&zip_archive, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, 0, 0);
  // Always finalize, even if adding failed for some reason, so we have a valid central directory. (This may not always succeed, but we can try.)
  if (!mz_zip_writer_finalize_archive(&zip_archive))
    status = MZ_FALSE;
  if (!mz_zip_writer_end(&zip_archive))
    status = MZ_FALSE;
  if ((!status) && (created_new_archive))
  {
    // It's a new archive and something went wrong, so just delete it.
    int ignoredStatus = MZ_DELETE_FILE(pZip_filename);
    (void)ignoredStatus;
  }
  return status;
}

void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint flags)
{
  int file_index;
  mz_zip_archive zip_archive;
  void *p = NULL;

  if (pSize)
    *pSize = 0;

  if ((!pZip_filename) || (!pArchive_name))
    return NULL;

  MZ_CLEAR_OBJ(zip_archive);
  if (!mz_zip_reader_init_file(&zip_archive, pZip_filename, flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY))
    return NULL;

  if ((file_index = mz_zip_reader_locate_file(&zip_archive, pArchive_name, NULL, flags)) >= 0)
    p = mz_zip_reader_extract_to_heap(&zip_archive, file_index, pSize, flags);

  mz_zip_reader_end(&zip_archive);
  return p;
}

#endif // #ifndef MINIZ_NO_STDIO

#endif // #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS

#endif // #ifndef MINIZ_NO_ARCHIVE_APIS

#ifdef __cplusplus
}
#endif

#endif // MINIZ_HEADER_FILE_ONLY

/*
  This is free and unencumbered software released into the public domain.

  Anyone is free to copy, modify, publish, use, compile, sell, or
  distribute this software, either in source code form or as a compiled
  binary, for any purpose, commercial or non-commercial, and by any
  means.

  In jurisdictions that recognize copyright laws, the author or authors
  of this software dedicate any and all copyright interest in the
  software to the public domain. We make this dedication for the benefit
  of the public at large and to the detriment of our heirs and
  successors. We intend this dedication to be an overt act of
  relinquishment in perpetuity of all present and future rights to this
  software under copyright law.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  OTHER DEALINGS IN THE SOFTWARE.

  For more information, please refer to <http://unlicense.org/>
*/

/* zlib.h -- interface of the 'zlib' general purpose compression library
  version 1.2.8, April 28th, 2013

  Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

  Jean-loup Gailly        Mark Adler
  jloup@gzip.org          madler@alumni.caltech.edu


  The data format used by the zlib library is described by RFCs (Request for
  Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
  (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
*/

#ifndef ZLIB_H
#define ZLIB_H

#include "zconf.h"

#ifdef __cplusplus
extern "C" {
#endif

#define ZLIB_VERSION "1.2.8"
#define ZLIB_VERNUM 0x1280
#define ZLIB_VER_MAJOR 1
#define ZLIB_VER_MINOR 2
#define ZLIB_VER_REVISION 8
#define ZLIB_VER_SUBREVISION 0

/*
    The 'zlib' compression library provides in-memory compression and
  decompression functions, including integrity checks of the uncompressed data.
  This version of the library supports only one compression method (deflation)
  but other algorithms will be added later and will have the same stream
  interface.

    Compression can be done in a single step if the buffers are large enough,
  or can be done by repeated calls of the compression function.  In the latter
  case, the application must provide more input and/or consume the output
  (providing more output space) before each call.

    The compressed data format used by default by the in-memory functions is
  the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped
  around a deflate stream, which is itself documented in RFC 1951.

    The library also supports reading and writing files in gzip (.gz) format
  with an interface similar to that of stdio using the functions that start
  with "gz".  The gzip format is different from the zlib format.  gzip is a
  gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.

    This library can optionally read and write gzip streams in memory as well.

    The zlib format was designed to be compact and fast for use in memory
  and on communications channels.  The gzip format was designed for single-
  file compression on file systems, has a larger header than zlib to maintain
  directory information, and uses a different, slower check method than zlib.

    The library does not install any signal handler.  The decoder checks
  the consistency of the compressed data, so the library should never crash
  even in case of corrupted input.
*/

typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
typedef void   (*free_func)  OF((voidpf opaque, voidpf address));

struct internal_state;

typedef struct z_stream_s {
    z_const Bytef *next_in;     /* next input byte */
    uInt     avail_in;  /* number of bytes available at next_in */
    uLong    total_in;  /* total number of input bytes read so far */

    Bytef    *next_out; /* next output byte should be put there */
    uInt     avail_out; /* remaining free space at next_out */
    uLong    total_out; /* total number of bytes output so far */

    z_const char *msg;  /* last error message, NULL if no error */
    struct internal_state FAR *state; /* not visible by applications */

    alloc_func zalloc;  /* used to allocate the internal state */
    free_func  zfree;   /* used to free the internal state */
    voidpf     opaque;  /* private data object passed to zalloc and zfree */

    int     data_type;  /* best guess about the data type: binary or text */
    uLong   adler;      /* adler32 value of the uncompressed data */
    uLong   reserved;   /* reserved for future use */
} z_stream;

typedef z_stream FAR *z_streamp;

/*
     gzip header information passed to and from zlib routines.  See RFC 1952
  for more details on the meanings of these fields.
*/
typedef struct gz_header_s {
    int     text;       /* true if compressed data believed to be text */
    uLong   time;       /* modification time */
    int     xflags;     /* extra flags (not used when writing a gzip file) */
    int     os;         /* operating system */
    Bytef   *extra;     /* pointer to extra field or Z_NULL if none */
    uInt    extra_len;  /* extra field length (valid if extra != Z_NULL) */
    uInt    extra_max;  /* space at extra (only when reading header) */
    Bytef   *name;      /* pointer to zero-terminated file name or Z_NULL */
    uInt    name_max;   /* space at name (only when reading header) */
    Bytef   *comment;   /* pointer to zero-terminated comment or Z_NULL */
    uInt    comm_max;   /* space at comment (only when reading header) */
    int     hcrc;       /* true if there was or will be a header crc */
    int     done;       /* true when done reading gzip header (not used
                           when writing a gzip file) */
} gz_header;

typedef gz_header FAR *gz_headerp;

/*
     The application must update next_in and avail_in when avail_in has dropped
   to zero.  It must update next_out and avail_out when avail_out has dropped
   to zero.  The application must initialize zalloc, zfree and opaque before
   calling the init function.  All other fields are set by the compression
   library and must not be updated by the application.

     The opaque value provided by the application will be passed as the first
   parameter for calls of zalloc and zfree.  This can be useful for custom
   memory management.  The compression library attaches no meaning to the
   opaque value.

     zalloc must return Z_NULL if there is not enough memory for the object.
   If zlib is used in a multi-threaded application, zalloc and zfree must be
   thread safe.

     On 16-bit systems, the functions zalloc and zfree must be able to allocate
   exactly 65536 bytes, but will not be required to allocate more than this if
   the symbol MAXSEG_64K is defined (see zconf.h).  WARNING: On MSDOS, pointers
   returned by zalloc for objects of exactly 65536 bytes *must* have their
   offset normalized to zero.  The default allocation function provided by this
   library ensures this (see zutil.c).  To reduce memory requirements and avoid
   any allocation of 64K objects, at the expense of compression ratio, compile
   the library with -DMAX_WBITS=14 (see zconf.h).

     The fields total_in and total_out can be used for statistics or progress
   reports.  After compression, total_in holds the total size of the
   uncompressed data and may be saved for use in the decompressor (particularly
   if the decompressor wants to decompress everything in a single step).
*/

                        /* constants */

#define Z_NO_FLUSH      0
#define Z_PARTIAL_FLUSH 1
#define Z_SYNC_FLUSH    2
#define Z_FULL_FLUSH    3
#define Z_FINISH        4
#define Z_BLOCK         5
#define Z_TREES         6
/* Allowed flush values; see deflate() and inflate() below for details */

#define Z_OK            0
#define Z_STREAM_END    1
#define Z_NEED_DICT     2
#define Z_ERRNO        (-1)
#define Z_STREAM_ERROR (-2)
#define Z_DATA_ERROR   (-3)
#define Z_MEM_ERROR    (-4)
#define Z_BUF_ERROR    (-5)
#define Z_VERSION_ERROR (-6)
/* Return codes for the compression/decompression functions. Negative values
 * are errors, positive values are used for special but normal events.
 */

#define Z_NO_COMPRESSION         0
#define Z_BEST_SPEED             1
#define Z_BEST_COMPRESSION       9
#define Z_DEFAULT_COMPRESSION  (-1)
/* compression levels */

#define Z_FILTERED            1
#define Z_HUFFMAN_ONLY        2
#define Z_RLE                 3
#define Z_FIXED               4
#define Z_DEFAULT_STRATEGY    0
/* compression strategy; see deflateInit2() below for details */

#define Z_BINARY   0
#define Z_TEXT     1
#define Z_ASCII    Z_TEXT   /* for compatibility with 1.2.2 and earlier */
#define Z_UNKNOWN  2
/* Possible values of the data_type field (though see inflate()) */

#define Z_DEFLATED   8
/* The deflate compression method (the only one supported in this version) */

#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */

#define zlib_version zlibVersion()
/* for compatibility with versions < 1.0.2 */


                        /* basic functions */

ZEXTERN const char * ZEXPORT zlibVersion OF((void));
/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
   If the first character differs, the library code actually used is not
   compatible with the zlib.h header file used by the application.  This check
   is automatically made by deflateInit and inflateInit.
 */

/*
ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level));

     Initializes the internal stream state for compression.  The fields
   zalloc, zfree and opaque must be initialized before by the caller.  If
   zalloc and zfree are set to Z_NULL, deflateInit updates them to use default
   allocation functions.

     The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
   1 gives best speed, 9 gives best compression, 0 gives no compression at all
   (the input data is simply copied a block at a time).  Z_DEFAULT_COMPRESSION
   requests a default compromise between speed and compression (currently
   equivalent to level 6).

     deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
   memory, Z_STREAM_ERROR if level is not a valid compression level, or
   Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible
   with the version assumed by the caller (ZLIB_VERSION).  msg is set to null
   if there is no error message.  deflateInit does not perform any compression:
   this will be done by deflate().
*/


ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
/*
    deflate compresses as much data as possible, and stops when the input
  buffer becomes empty or the output buffer becomes full.  It may introduce
  some output latency (reading input without producing any output) except when
  forced to flush.

    The detailed semantics are as follows.  deflate performs one or both of the
  following actions:

  - Compress more input starting at next_in and update next_in and avail_in
    accordingly.  If not all input can be processed (because there is not
    enough room in the output buffer), next_in and avail_in are updated and
    processing will resume at this point for the next call of deflate().

  - Provide more output starting at next_out and update next_out and avail_out
    accordingly.  This action is forced if the parameter flush is non zero.
    Forcing flush frequently degrades the compression ratio, so this parameter
    should be set only when necessary (in interactive applications).  Some
    output may be provided even if flush is not set.

    Before the call of deflate(), the application should ensure that at least
  one of the actions is possible, by providing more input and/or consuming more
  output, and updating avail_in or avail_out accordingly; avail_out should
  never be zero before the call.  The application can consume the compressed
  output when it wants, for example when the output buffer is full (avail_out
  == 0), or after each call of deflate().  If deflate returns Z_OK and with
  zero avail_out, it must be called again after making room in the output
  buffer because there might be more output pending.

    Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to
  decide how much data to accumulate before producing output, in order to
  maximize compression.

    If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
  flushed to the output buffer and the output is aligned on a byte boundary, so
  that the decompressor can get all input data available so far.  (In
  particular avail_in is zero after the call if enough output space has been
  provided before the call.) Flushing may degrade compression for some
  compression algorithms and so it should be used only when necessary.  This
  completes the current deflate block and follows it with an empty stored block
  that is three bits plus filler bits to the next byte, followed by four bytes
  (00 00 ff ff).

    If flush is set to Z_PARTIAL_FLUSH, all pending output is flushed to the
  output buffer, but the output is not aligned to a byte boundary.  All of the
  input data so far will be available to the decompressor, as for Z_SYNC_FLUSH.
  This completes the current deflate block and follows it with an empty fixed
  codes block that is 10 bits long.  This assures that enough bytes are output
  in order for the decompressor to finish the block before the empty fixed code
  block.

    If flush is set to Z_BLOCK, a deflate block is completed and emitted, as
  for Z_SYNC_FLUSH, but the output is not aligned on a byte boundary, and up to
  seven bits of the current block are held to be written as the next byte after
  the next deflate block is completed.  In this case, the decompressor may not
  be provided enough bits at this point in order to complete decompression of
  the data provided so far to the compressor.  It may need to wait for the next
  block to be emitted.  This is for advanced applications that need to control
  the emission of deflate blocks.

    If flush is set to Z_FULL_FLUSH, all output is flushed as with
  Z_SYNC_FLUSH, and the compression state is reset so that decompression can
  restart from this point if previous compressed data has been damaged or if
  random access is desired.  Using Z_FULL_FLUSH too often can seriously degrade
  compression.

    If deflate returns with avail_out == 0, this function must be called again
  with the same value of the flush parameter and more output space (updated
  avail_out), until the flush is complete (deflate returns with non-zero
  avail_out).  In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that
  avail_out is greater than six to avoid repeated flush markers due to
  avail_out == 0 on return.

    If the parameter flush is set to Z_FINISH, pending input is processed,
  pending output is flushed and deflate returns with Z_STREAM_END if there was
  enough output space; if deflate returns with Z_OK, this function must be
  called again with Z_FINISH and more output space (updated avail_out) but no
  more input data, until it returns with Z_STREAM_END or an error.  After
  deflate has returned Z_STREAM_END, the only possible operations on the stream
  are deflateReset or deflateEnd.

    Z_FINISH can be used immediately after deflateInit if all the compression
  is to be done in a single step.  In this case, avail_out must be at least the
  value returned by deflateBound (see below).  Then deflate is guaranteed to
  return Z_STREAM_END.  If not enough output space is provided, deflate will
  not return Z_STREAM_END, and it must be called again as described above.

    deflate() sets strm->adler to the adler32 checksum of all input read
  so far (that is, total_in bytes).

    deflate() may update strm->data_type if it can make a good guess about
  the input data type (Z_BINARY or Z_TEXT).  In doubt, the data is considered
  binary.  This field is only for information purposes and does not affect the
  compression algorithm in any manner.

    deflate() returns Z_OK if some progress has been made (more input
  processed or more output produced), Z_STREAM_END if all input has been
  consumed and all output has been produced (only when flush is set to
  Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
  if next_in or next_out was Z_NULL), Z_BUF_ERROR if no progress is possible
  (for example avail_in or avail_out was zero).  Note that Z_BUF_ERROR is not
  fatal, and deflate() can be called again with more input and more output
  space to continue compressing.
*/


ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
/*
     All dynamically allocated data structures for this stream are freed.
   This function discards any unprocessed input and does not flush any pending
   output.

     deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the
   stream state was inconsistent, Z_DATA_ERROR if the stream was freed
   prematurely (some input or output was discarded).  In the error case, msg
   may be set but then points to a static string (which must not be
   deallocated).
*/


/*
ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));

     Initializes the internal stream state for decompression.  The fields
   next_in, avail_in, zalloc, zfree and opaque must be initialized before by
   the caller.  If next_in is not Z_NULL and avail_in is large enough (the
   exact value depends on the compression method), inflateInit determines the
   compression method from the zlib header and allocates all data structures
   accordingly; otherwise the allocation will be deferred to the first call of
   inflate.  If zalloc and zfree are set to Z_NULL, inflateInit updates them to
   use default allocation functions.

     inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
   memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
   version assumed by the caller, or Z_STREAM_ERROR if the parameters are
   invalid, such as a null pointer to the structure.  msg is set to null if
   there is no error message.  inflateInit does not perform any decompression
   apart from possibly reading the zlib header if present: actual decompression
   will be done by inflate().  (So next_in and avail_in may be modified, but
   next_out and avail_out are unused and unchanged.) The current implementation
   of inflateInit() does not process any header information -- that is deferred
   until inflate() is called.
*/


ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
/*
    inflate decompresses as much data as possible, and stops when the input
  buffer becomes empty or the output buffer becomes full.  It may introduce
  some output latency (reading input without producing any output) except when
  forced to flush.

  The detailed semantics are as follows.  inflate performs one or both of the
  following actions:

  - Decompress more input starting at next_in and update next_in and avail_in
    accordingly.  If not all input can be processed (because there is not
    enough room in the output buffer), next_in is updated and processing will
    resume at this point for the next call of inflate().

  - Provide more output starting at next_out and update next_out and avail_out
    accordingly.  inflate() provides as much output as possible, until there is
    no more input data or no more space in the output buffer (see below about
    the flush parameter).

    Before the call of inflate(), the application should ensure that at least
  one of the actions is possible, by providing more input and/or consuming more
  output, and updating the next_* and avail_* values accordingly.  The
  application can consume the uncompressed output when it wants, for example
  when the output buffer is full (avail_out == 0), or after each call of
  inflate().  If inflate returns Z_OK and with zero avail_out, it must be
  called again after making room in the output buffer because there might be
  more output pending.

    The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FINISH,
  Z_BLOCK, or Z_TREES.  Z_SYNC_FLUSH requests that inflate() flush as much
  output as possible to the output buffer.  Z_BLOCK requests that inflate()
  stop if and when it gets to the next deflate block boundary.  When decoding
  the zlib or gzip format, this will cause inflate() to return immediately
  after the header and before the first block.  When doing a raw inflate,
  inflate() will go ahead and process the first block, and will return when it
  gets to the end of that block, or when it runs out of data.

    The Z_BLOCK option assists in appending to or combining deflate streams.
  Also to assist in this, on return inflate() will set strm->data_type to the
  number of unused bits in the last byte taken from strm->next_in, plus 64 if
  inflate() is currently decoding the last block in the deflate stream, plus
  128 if inflate() returned immediately after decoding an end-of-block code or
  decoding the complete header up to just before the first byte of the deflate
  stream.  The end-of-block will not be indicated until all of the uncompressed
  data from that block has been written to strm->next_out.  The number of
  unused bits may in general be greater than seven, except when bit 7 of
  data_type is set, in which case the number of unused bits will be less than
  eight.  data_type is set as noted here every time inflate() returns for all
  flush options, and so can be used to determine the amount of currently
  consumed input in bits.

    The Z_TREES option behaves as Z_BLOCK does, but it also returns when the
  end of each deflate block header is reached, before any actual data in that
  block is decoded.  This allows the caller to determine the length of the
  deflate block header for later use in random access within a deflate block.
  256 is added to the value of strm->data_type when inflate() returns
  immediately after reaching the end of the deflate block header.

    inflate() should normally be called until it returns Z_STREAM_END or an
  error.  However if all decompression is to be performed in a single step (a
  single call of inflate), the parameter flush should be set to Z_FINISH.  In
  this case all pending input is processed and all pending output is flushed;
  avail_out must be large enough to hold all of the uncompressed data for the
  operation to complete.  (The size of the uncompressed data may have been
  saved by the compressor for this purpose.) The use of Z_FINISH is not
  required to perform an inflation in one step.  However it may be used to
  inform inflate that a faster approach can be used for the single inflate()
  call.  Z_FINISH also informs inflate to not maintain a sliding window if the
  stream completes, which reduces inflate's memory footprint.  If the stream
  does not complete, either because not all of the stream is provided or not
  enough output space is provided, then a sliding window will be allocated and
  inflate() can be called again to continue the operation as if Z_NO_FLUSH had
  been used.

     In this implementation, inflate() always flushes as much output as
  possible to the output buffer, and always uses the faster approach on the
  first call.  So the effects of the flush parameter in this implementation are
  on the return value of inflate() as noted below, when inflate() returns early
  when Z_BLOCK or Z_TREES is used, and when inflate() avoids the allocation of
  memory for a sliding window when Z_FINISH is used.

     If a preset dictionary is needed after this call (see inflateSetDictionary
  below), inflate sets strm->adler to the Adler-32 checksum of the dictionary
  chosen by the compressor and returns Z_NEED_DICT; otherwise it sets
  strm->adler to the Adler-32 checksum of all output produced so far (that is,
  total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described
  below.  At the end of the stream, inflate() checks that its computed adler32
  checksum is equal to that saved by the compressor and returns Z_STREAM_END
  only if the checksum is correct.

    inflate() can decompress and check either zlib-wrapped or gzip-wrapped
  deflate data.  The header type is detected automatically, if requested when
  initializing with inflateInit2().  Any information contained in the gzip
  header is not retained, so applications that need that information should
  instead use raw inflate, see inflateInit2() below, or inflateBack() and
  perform their own processing of the gzip header and trailer.  When processing
  gzip-wrapped deflate data, strm->adler32 is set to the CRC-32 of the output
  producted so far.  The CRC-32 is checked against the gzip trailer.

    inflate() returns Z_OK if some progress has been made (more input processed
  or more output produced), Z_STREAM_END if the end of the compressed data has
  been reached and all uncompressed output has been produced, Z_NEED_DICT if a
  preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
  corrupted (input stream not conforming to the zlib format or incorrect check
  value), Z_STREAM_ERROR if the stream structure was inconsistent (for example
  next_in or next_out was Z_NULL), Z_MEM_ERROR if there was not enough memory,
  Z_BUF_ERROR if no progress is possible or if there was not enough room in the
  output buffer when Z_FINISH is used.  Note that Z_BUF_ERROR is not fatal, and
  inflate() can be called again with more input and more output space to
  continue decompressing.  If Z_DATA_ERROR is returned, the application may
  then call inflateSync() to look for a good compression block if a partial
  recovery of the data is desired.
*/


ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
/*
     All dynamically allocated data structures for this stream are freed.
   This function discards any unprocessed input and does not flush any pending
   output.

     inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state
   was inconsistent.  In the error case, msg may be set but then points to a
   static string (which must not be deallocated).
*/


                        /* Advanced functions */

/*
    The following functions are needed only in some special applications.
*/

/*
ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
                                     int  level,
                                     int  method,
                                     int  windowBits,
                                     int  memLevel,
                                     int  strategy));

     This is another version of deflateInit with more compression options.  The
   fields next_in, zalloc, zfree and opaque must be initialized before by the
   caller.

     The method parameter is the compression method.  It must be Z_DEFLATED in
   this version of the library.

     The windowBits parameter is the base two logarithm of the window size
   (the size of the history buffer).  It should be in the range 8..15 for this
   version of the library.  Larger values of this parameter result in better
   compression at the expense of memory usage.  The default value is 15 if
   deflateInit is used instead.

     windowBits can also be -8..-15 for raw deflate.  In this case, -windowBits
   determines the window size.  deflate() will then generate raw deflate data
   with no zlib header or trailer, and will not compute an adler32 check value.

     windowBits can also be greater than 15 for optional gzip encoding.  Add
   16 to windowBits to write a simple gzip header and trailer around the
   compressed data instead of a zlib wrapper.  The gzip header will have no
   file name, no extra data, no comment, no modification time (set to zero), no
   header crc, and the operating system will be set to 255 (unknown).  If a
   gzip stream is being written, strm->adler is a crc32 instead of an adler32.

     The memLevel parameter specifies how much memory should be allocated
   for the internal compression state.  memLevel=1 uses minimum memory but is
   slow and reduces compression ratio; memLevel=9 uses maximum memory for
   optimal speed.  The default value is 8.  See zconf.h for total memory usage
   as a function of windowBits and memLevel.

     The strategy parameter is used to tune the compression algorithm.  Use the
   value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
   filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no
   string match), or Z_RLE to limit match distances to one (run-length
   encoding).  Filtered data consists mostly of small values with a somewhat
   random distribution.  In this case, the compression algorithm is tuned to
   compress them better.  The effect of Z_FILTERED is to force more Huffman
   coding and less string matching; it is somewhat intermediate between
   Z_DEFAULT_STRATEGY and Z_HUFFMAN_ONLY.  Z_RLE is designed to be almost as
   fast as Z_HUFFMAN_ONLY, but give better compression for PNG image data.  The
   strategy parameter only affects the compression ratio but not the
   correctness of the compressed output even if it is not set appropriately.
   Z_FIXED prevents the use of dynamic Huffman codes, allowing for a simpler
   decoder for special applications.

     deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
   memory, Z_STREAM_ERROR if any parameter is invalid (such as an invalid
   method), or Z_VERSION_ERROR if the zlib library version (zlib_version) is
   incompatible with the version assumed by the caller (ZLIB_VERSION).  msg is
   set to null if there is no error message.  deflateInit2 does not perform any
   compression: this will be done by deflate().
*/

ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
                                             const Bytef *dictionary,
                                             uInt  dictLength));
/*
     Initializes the compression dictionary from the given byte sequence
   without producing any compressed output.  When using the zlib format, this
   function must be called immediately after deflateInit, deflateInit2 or
   deflateReset, and before any call of deflate.  When doing raw deflate, this
   function must be called either before any call of deflate, or immediately
   after the completion of a deflate block, i.e. after all input has been
   consumed and all output has been delivered when using any of the flush
   options Z_BLOCK, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, or Z_FULL_FLUSH.  The
   compressor and decompressor must use exactly the same dictionary (see
   inflateSetDictionary).

     The dictionary should consist of strings (byte sequences) that are likely
   to be encountered later in the data to be compressed, with the most commonly
   used strings preferably put towards the end of the dictionary.  Using a
   dictionary is most useful when the data to be compressed is short and can be
   predicted with good accuracy; the data can then be compressed better than
   with the default empty dictionary.

     Depending on the size of the compression data structures selected by
   deflateInit or deflateInit2, a part of the dictionary may in effect be
   discarded, for example if the dictionary is larger than the window size
   provided in deflateInit or deflateInit2.  Thus the strings most likely to be
   useful should be put at the end of the dictionary, not at the front.  In
   addition, the current implementation of deflate will use at most the window
   size minus 262 bytes of the provided dictionary.

     Upon return of this function, strm->adler is set to the adler32 value
   of the dictionary; the decompressor may later use this value to determine
   which dictionary has been used by the compressor.  (The adler32 value
   applies to the whole dictionary even if only a subset of the dictionary is
   actually used by the compressor.) If a raw deflate was requested, then the
   adler32 value is not computed and strm->adler is not set.

     deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
   parameter is invalid (e.g.  dictionary being Z_NULL) or the stream state is
   inconsistent (for example if deflate has already been called for this stream
   or if not at a block boundary for raw deflate).  deflateSetDictionary does
   not perform any compression: this will be done by deflate().
*/

ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
                                    z_streamp source));
/*
     Sets the destination stream as a complete copy of the source stream.

     This function can be useful when several compression strategies will be
   tried, for example when there are several ways of pre-processing the input
   data with a filter.  The streams that will be discarded should then be freed
   by calling deflateEnd.  Note that deflateCopy duplicates the internal
   compression state which can be quite large, so this strategy is slow and can
   consume lots of memory.

     deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
   (such as zalloc being Z_NULL).  msg is left unchanged in both source and
   destination.
*/

ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
/*
     This function is equivalent to deflateEnd followed by deflateInit,
   but does not free and reallocate all the internal compression state.  The
   stream will keep the same compression level and any other attributes that
   may have been set by deflateInit2.

     deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
   stream state was inconsistent (such as zalloc or state being Z_NULL).
*/

ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
                                      int level,
                                      int strategy));
/*
     Dynamically update the compression level and compression strategy.  The
   interpretation of level and strategy is as in deflateInit2.  This can be
   used to switch between compression and straight copy of the input data, or
   to switch to a different kind of input data requiring a different strategy.
   If the compression level is changed, the input available so far is
   compressed with the old level (and may be flushed); the new level will take
   effect only at the next call of deflate().

     Before the call of deflateParams, the stream state must be set as for
   a call of deflate(), since the currently available input may have to be
   compressed and flushed.  In particular, strm->avail_out must be non-zero.

     deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source
   stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR if
   strm->avail_out was zero.
*/

ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm,
                                    int good_length,
                                    int max_lazy,
                                    int nice_length,
                                    int max_chain));
/*
     Fine tune deflate's internal compression parameters.  This should only be
   used by someone who understands the algorithm used by zlib's deflate for
   searching for the best matching string, and even then only by the most
   fanatic optimizer trying to squeeze out the last compressed bit for their
   specific input data.  Read the deflate.c source code for the meaning of the
   max_lazy, good_length, nice_length, and max_chain parameters.

     deflateTune() can be called after deflateInit() or deflateInit2(), and
   returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream.
 */

ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm,
                                       uLong sourceLen));
/*
     deflateBound() returns an upper bound on the compressed size after
   deflation of sourceLen bytes.  It must be called after deflateInit() or
   deflateInit2(), and after deflateSetHeader(), if used.  This would be used
   to allocate an output buffer for deflation in a single pass, and so would be
   called before deflate().  If that first deflate() call is provided the
   sourceLen input bytes, an output buffer allocated to the size returned by
   deflateBound(), and the flush value Z_FINISH, then deflate() is guaranteed
   to return Z_STREAM_END.  Note that it is possible for the compressed size to
   be larger than the value returned by deflateBound() if flush options other
   than Z_FINISH or Z_NO_FLUSH are used.
*/

ZEXTERN int ZEXPORT deflatePending OF((z_streamp strm,
                                       unsigned *pending,
                                       int *bits));
/*
     deflatePending() returns the number of bytes and bits of output that have
   been generated, but not yet provided in the available output.  The bytes not
   provided would be due to the available output space having being consumed.
   The number of bits of output not provided are between 0 and 7, where they
   await more bits to join them in order to fill out a full byte.  If pending
   or bits are Z_NULL, then those values are not set.

     deflatePending returns Z_OK if success, or Z_STREAM_ERROR if the source
   stream state was inconsistent.
 */

ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
                                     int bits,
                                     int value));
/*
     deflatePrime() inserts bits in the deflate output stream.  The intent
   is that this function is used to start off the deflate output with the bits
   leftover from a previous deflate stream when appending to it.  As such, this
   function can only be used for raw deflate, and must be used before the first
   deflate() call after a deflateInit2() or deflateReset().  bits must be less
   than or equal to 16, and that many of the least significant bits of value
   will be inserted in the output.

     deflatePrime returns Z_OK if success, Z_BUF_ERROR if there was not enough
   room in the internal buffer to insert the bits, or Z_STREAM_ERROR if the
   source stream state was inconsistent.
*/

ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm,
                                         gz_headerp head));
/*
     deflateSetHeader() provides gzip header information for when a gzip
   stream is requested by deflateInit2().  deflateSetHeader() may be called
   after deflateInit2() or deflateReset() and before the first call of
   deflate().  The text, time, os, extra field, name, and comment information
   in the provided gz_header structure are written to the gzip header (xflag is
   ignored -- the extra flags are set according to the compression level).  The
   caller must assure that, if not Z_NULL, name and comment are terminated with
   a zero byte, and that if extra is not Z_NULL, that extra_len bytes are
   available there.  If hcrc is true, a gzip header crc is included.  Note that
   the current versions of the command-line version of gzip (up through version
   1.3.x) do not support header crc's, and will report that it is a "multi-part
   gzip file" and give up.

     If deflateSetHeader is not used, the default gzip header has text false,
   the time set to zero, and os set to 255, with no extra, name, or comment
   fields.  The gzip header is returned to the default state by deflateReset().

     deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
   stream state was inconsistent.
*/

/*
ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
                                     int  windowBits));

     This is another version of inflateInit with an extra parameter.  The
   fields next_in, avail_in, zalloc, zfree and opaque must be initialized
   before by the caller.

     The windowBits parameter is the base two logarithm of the maximum window
   size (the size of the history buffer).  It should be in the range 8..15 for
   this version of the library.  The default value is 15 if inflateInit is used
   instead.  windowBits must be greater than or equal to the windowBits value
   provided to deflateInit2() while compressing, or it must be equal to 15 if
   deflateInit2() was not used.  If a compressed stream with a larger window
   size is given as input, inflate() will return with the error code
   Z_DATA_ERROR instead of trying to allocate a larger window.

     windowBits can also be zero to request that inflate use the window size in
   the zlib header of the compressed stream.

     windowBits can also be -8..-15 for raw inflate.  In this case, -windowBits
   determines the window size.  inflate() will then process raw deflate data,
   not looking for a zlib or gzip header, not generating a check value, and not
   looking for any check values for comparison at the end of the stream.  This
   is for use with other formats that use the deflate compressed data format
   such as zip.  Those formats provide their own check values.  If a custom
   format is developed using the raw deflate format for compressed data, it is
   recommended that a check value such as an adler32 or a crc32 be applied to
   the uncompressed data as is done in the zlib, gzip, and zip formats.  For
   most applications, the zlib format should be used as is.  Note that comments
   above on the use in deflateInit2() applies to the magnitude of windowBits.

     windowBits can also be greater than 15 for optional gzip decoding.  Add
   32 to windowBits to enable zlib and gzip decoding with automatic header
   detection, or add 16 to decode only the gzip format (the zlib format will
   return a Z_DATA_ERROR).  If a gzip stream is being decoded, strm->adler is a
   crc32 instead of an adler32.

     inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
   memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
   version assumed by the caller, or Z_STREAM_ERROR if the parameters are
   invalid, such as a null pointer to the structure.  msg is set to null if
   there is no error message.  inflateInit2 does not perform any decompression
   apart from possibly reading the zlib header if present: actual decompression
   will be done by inflate().  (So next_in and avail_in may be modified, but
   next_out and avail_out are unused and unchanged.) The current implementation
   of inflateInit2() does not process any header information -- that is
   deferred until inflate() is called.
*/

ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
                                             const Bytef *dictionary,
                                             uInt  dictLength));
/*
     Initializes the decompression dictionary from the given uncompressed byte
   sequence.  This function must be called immediately after a call of inflate,
   if that call returned Z_NEED_DICT.  The dictionary chosen by the compressor
   can be determined from the adler32 value returned by that call of inflate.
   The compressor and decompressor must use exactly the same dictionary (see
   deflateSetDictionary).  For raw inflate, this function can be called at any
   time to set the dictionary.  If the provided dictionary is smaller than the
   window and there is already data in the window, then the provided dictionary
   will amend what's there.  The application must insure that the dictionary
   that was used for compression is provided.

     inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
   parameter is invalid (e.g.  dictionary being Z_NULL) or the stream state is
   inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
   expected one (incorrect adler32 value).  inflateSetDictionary does not
   perform any decompression: this will be done by subsequent calls of
   inflate().
*/

ZEXTERN int ZEXPORT inflateGetDictionary OF((z_streamp strm,
                                             Bytef *dictionary,
                                             uInt  *dictLength));
/*
     Returns the sliding dictionary being maintained by inflate.  dictLength is
   set to the number of bytes in the dictionary, and that many bytes are copied
   to dictionary.  dictionary must have enough space, where 32768 bytes is
   always enough.  If inflateGetDictionary() is called with dictionary equal to
   Z_NULL, then only the dictionary length is returned, and nothing is copied.
   Similary, if dictLength is Z_NULL, then it is not set.

     inflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the
   stream state is inconsistent.
*/

ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
/*
     Skips invalid compressed data until a possible full flush point (see above
   for the description of deflate with Z_FULL_FLUSH) can be found, or until all
   available input is skipped.  No output is provided.

     inflateSync searches for a 00 00 FF FF pattern in the compressed data.
   All full flush points have this pattern, but not all occurrences of this
   pattern are full flush points.

     inflateSync returns Z_OK if a possible full flush point has been found,
   Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point
   has been found, or Z_STREAM_ERROR if the stream structure was inconsistent.
   In the success case, the application may save the current current value of
   total_in which indicates where valid compressed data was found.  In the
   error case, the application may repeatedly call inflateSync, providing more
   input each time, until success or end of the input data.
*/

ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
                                    z_streamp source));
/*
     Sets the destination stream as a complete copy of the source stream.

     This function can be useful when randomly accessing a large stream.  The
   first pass through the stream can periodically record the inflate state,
   allowing restarting inflate at those points when randomly accessing the
   stream.

     inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
   (such as zalloc being Z_NULL).  msg is left unchanged in both source and
   destination.
*/

ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
/*
     This function is equivalent to inflateEnd followed by inflateInit,
   but does not free and reallocate all the internal decompression state.  The
   stream will keep attributes that may have been set by inflateInit2.

     inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
   stream state was inconsistent (such as zalloc or state being Z_NULL).
*/

ZEXTERN int ZEXPORT inflateReset2 OF((z_streamp strm,
                                      int windowBits));
/*
     This function is the same as inflateReset, but it also permits changing
   the wrap and window size requests.  The windowBits parameter is interpreted
   the same as it is for inflateInit2.

     inflateReset2 returns Z_OK if success, or Z_STREAM_ERROR if the source
   stream state was inconsistent (such as zalloc or state being Z_NULL), or if
   the windowBits parameter is invalid.
*/

ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm,
                                     int bits,
                                     int value));
/*
     This function inserts bits in the inflate input stream.  The intent is
   that this function is used to start inflating at a bit position in the
   middle of a byte.  The provided bits will be used before any bytes are used
   from next_in.  This function should only be used with raw inflate, and
   should be used before the first inflate() call after inflateInit2() or
   inflateReset().  bits must be less than or equal to 16, and that many of the
   least significant bits of value will be inserted in the input.

     If bits is negative, then the input stream bit buffer is emptied.  Then
   inflatePrime() can be called again to put bits in the buffer.  This is used
   to clear out bits leftover after feeding inflate a block description prior
   to feeding inflate codes.

     inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
   stream state was inconsistent.
*/

ZEXTERN long ZEXPORT inflateMark OF((z_streamp strm));
/*
     This function returns two values, one in the lower 16 bits of the return
   value, and the other in the remaining upper bits, obtained by shifting the
   return value down 16 bits.  If the upper value is -1 and the lower value is
   zero, then inflate() is currently decoding information outside of a block.
   If the upper value is -1 and the lower value is non-zero, then inflate is in
   the middle of a stored block, with the lower value equaling the number of
   bytes from the input remaining to copy.  If the upper value is not -1, then
   it is the number of bits back from the current bit position in the input of
   the code (literal or length/distance pair) currently being processed.  In
   that case the lower value is the number of bytes already emitted for that
   code.

     A code is being processed if inflate is waiting for more input to complete
   decoding of the code, or if it has completed decoding but is waiting for
   more output space to write the literal or match data.

     inflateMark() is used to mark locations in the input data for random
   access, which may be at bit positions, and to note those cases where the
   output of a code may span boundaries of random access blocks.  The current
   location in the input stream can be determined from avail_in and data_type
   as noted in the description for the Z_BLOCK flush parameter for inflate.

     inflateMark returns the value noted above or -1 << 16 if the provided
   source stream state was inconsistent.
*/

ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm,
                                         gz_headerp head));
/*
     inflateGetHeader() requests that gzip header information be stored in the
   provided gz_header structure.  inflateGetHeader() may be called after
   inflateInit2() or inflateReset(), and before the first call of inflate().
   As inflate() processes the gzip stream, head->done is zero until the header
   is completed, at which time head->done is set to one.  If a zlib stream is
   being decoded, then head->done is set to -1 to indicate that there will be
   no gzip header information forthcoming.  Note that Z_BLOCK or Z_TREES can be
   used to force inflate() to return immediately after header processing is
   complete and before any actual data is decompressed.

     The text, time, xflags, and os fields are filled in with the gzip header
   contents.  hcrc is set to true if there is a header CRC.  (The header CRC
   was valid if done is set to one.) If extra is not Z_NULL, then extra_max
   contains the maximum number of bytes to write to extra.  Once done is true,
   extra_len contains the actual extra field length, and extra contains the
   extra field, or that field truncated if extra_max is less than extra_len.
   If name is not Z_NULL, then up to name_max characters are written there,
   terminated with a zero unless the length is greater than name_max.  If
   comment is not Z_NULL, then up to comm_max characters are written there,
   terminated with a zero unless the length is greater than comm_max.  When any
   of extra, name, or comment are not Z_NULL and the respective field is not
   present in the header, then that field is set to Z_NULL to signal its
   absence.  This allows the use of deflateSetHeader() with the returned
   structure to duplicate the header.  However if those fields are set to
   allocated memory, then the application will need to save those pointers
   elsewhere so that they can be eventually freed.

     If inflateGetHeader is not used, then the header information is simply
   discarded.  The header is always checked for validity, including the header
   CRC if present.  inflateReset() will reset the process to discard the header
   information.  The application would need to call inflateGetHeader() again to
   retrieve the header from the next gzip stream.

     inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
   stream state was inconsistent.
*/

/*
ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
                                        unsigned char FAR *window));

     Initialize the internal stream state for decompression using inflateBack()
   calls.  The fields zalloc, zfree and opaque in strm must be initialized
   before the call.  If zalloc and zfree are Z_NULL, then the default library-
   derived memory allocation routines are used.  windowBits is the base two
   logarithm of the window size, in the range 8..15.  window is a caller
   supplied buffer of that size.  Except for special applications where it is
   assured that deflate was used with small window sizes, windowBits must be 15
   and a 32K byte window must be supplied to be able to decompress general
   deflate streams.

     See inflateBack() for the usage of these routines.

     inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of
   the parameters are invalid, Z_MEM_ERROR if the internal state could not be
   allocated, or Z_VERSION_ERROR if the version of the library does not match
   the version of the header file.
*/

typedef unsigned (*in_func) OF((void FAR *,
                                z_const unsigned char FAR * FAR *));
typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned));

ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
                                    in_func in, void FAR *in_desc,
                                    out_func out, void FAR *out_desc));
/*
     inflateBack() does a raw inflate with a single call using a call-back
   interface for input and output.  This is potentially more efficient than
   inflate() for file i/o applications, in that it avoids copying between the
   output and the sliding window by simply making the window itself the output
   buffer.  inflate() can be faster on modern CPUs when used with large
   buffers.  inflateBack() trusts the application to not change the output
   buffer passed by the output function, at least until inflateBack() returns.

     inflateBackInit() must be called first to allocate the internal state
   and to initialize the state with the user-provided window buffer.
   inflateBack() may then be used multiple times to inflate a complete, raw
   deflate stream with each call.  inflateBackEnd() is then called to free the
   allocated state.

     A raw deflate stream is one with no zlib or gzip header or trailer.
   This routine would normally be used in a utility that reads zip or gzip
   files and writes out uncompressed files.  The utility would decode the
   header and process the trailer on its own, hence this routine expects only
   the raw deflate stream to decompress.  This is different from the normal
   behavior of inflate(), which expects either a zlib or gzip header and
   trailer around the deflate stream.

     inflateBack() uses two subroutines supplied by the caller that are then
   called by inflateBack() for input and output.  inflateBack() calls those
   routines until it reads a complete deflate stream and writes out all of the
   uncompressed data, or until it encounters an error.  The function's
   parameters and return types are defined above in the in_func and out_func
   typedefs.  inflateBack() will call in(in_desc, &buf) which should return the
   number of bytes of provided input, and a pointer to that input in buf.  If
   there is no input available, in() must return zero--buf is ignored in that
   case--and inflateBack() will return a buffer error.  inflateBack() will call
   out(out_desc, buf, len) to write the uncompressed data buf[0..len-1].  out()
   should return zero on success, or non-zero on failure.  If out() returns
   non-zero, inflateBack() will return with an error.  Neither in() nor out()
   are permitted to change the contents of the window provided to
   inflateBackInit(), which is also the buffer that out() uses to write from.
   The length written by out() will be at most the window size.  Any non-zero
   amount of input may be provided by in().

     For convenience, inflateBack() can be provided input on the first call by
   setting strm->next_in and strm->avail_in.  If that input is exhausted, then
   in() will be called.  Therefore strm->next_in must be initialized before
   calling inflateBack().  If strm->next_in is Z_NULL, then in() will be called
   immediately for input.  If strm->next_in is not Z_NULL, then strm->avail_in
   must also be initialized, and then if strm->avail_in is not zero, input will
   initially be taken from strm->next_in[0 ..  strm->avail_in - 1].

     The in_desc and out_desc parameters of inflateBack() is passed as the
   first parameter of in() and out() respectively when they are called.  These
   descriptors can be optionally used to pass any information that the caller-
   supplied in() and out() functions need to do their job.

     On return, inflateBack() will set strm->next_in and strm->avail_in to
   pass back any unused input that was provided by the last in() call.  The
   return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR
   if in() or out() returned an error, Z_DATA_ERROR if there was a format error
   in the deflate stream (in which case strm->msg is set to indicate the nature
   of the error), or Z_STREAM_ERROR if the stream was not properly initialized.
   In the case of Z_BUF_ERROR, an input or output error can be distinguished
   using strm->next_in which will be Z_NULL only if in() returned an error.  If
   strm->next_in is not Z_NULL, then the Z_BUF_ERROR was due to out() returning
   non-zero.  (in() will always be called before out(), so strm->next_in is
   assured to be defined if out() returns non-zero.) Note that inflateBack()
   cannot return Z_OK.
*/

ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm));
/*
     All memory allocated by inflateBackInit() is freed.

     inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream
   state was inconsistent.
*/

ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void));
/* Return flags indicating compile-time options.

    Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other:
     1.0: size of uInt
     3.2: size of uLong
     5.4: size of voidpf (pointer)
     7.6: size of z_off_t

    Compiler, assembler, and debug options:
     8: DEBUG
     9: ASMV or ASMINF -- use ASM code
     10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention
     11: 0 (reserved)

    One-time table building (smaller code, but not thread-safe if true):
     12: BUILDFIXED -- build static block decoding tables when needed
     13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed
     14,15: 0 (reserved)

    Library content (indicates missing functionality):
     16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking
                          deflate code when not needed)
     17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect
                    and decode gzip streams (to avoid linking crc code)
     18-19: 0 (reserved)

    Operation variations (changes in library functionality):
     20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate
     21: FASTEST -- deflate algorithm with only one, lowest compression level
     22,23: 0 (reserved)

    The sprintf variant used by gzprintf (zero is best):
     24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format
     25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure!
     26: 0 = returns value, 1 = void -- 1 means inferred string length returned

    Remainder:
     27-31: 0 (reserved)
 */

#ifndef Z_SOLO

                        /* utility functions */

/*
     The following utility functions are implemented on top of the basic
   stream-oriented functions.  To simplify the interface, some default options
   are assumed (compression level and memory usage, standard memory allocation
   functions).  The source code of these utility functions can be modified if
   you need special options.
*/

ZEXTERN int ZEXPORT compress OF((Bytef *dest,   uLongf *destLen,
                                 const Bytef *source, uLong sourceLen));
/*
     Compresses 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 at least the value returned by
   compressBound(sourceLen).  Upon exit, destLen is the actual size of the
   compressed buffer.

     compress 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.
*/

ZEXTERN int ZEXPORT compress2 OF((Bytef *dest,   uLongf *destLen,
                                  const Bytef *source, uLong sourceLen,
                                  int level));
/*
     Compresses the source buffer into the destination buffer.  The level
   parameter has the same meaning as in deflateInit.  sourceLen is the byte
   length of the source buffer.  Upon entry, destLen is the total size of the
   destination buffer, which must be at least the value returned by
   compressBound(sourceLen).  Upon exit, destLen is the actual size of the
   compressed buffer.

     compress2 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,
   Z_STREAM_ERROR if the level parameter is invalid.
*/

ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen));
/*
     compressBound() returns an upper bound on the compressed size after
   compress() or compress2() on sourceLen bytes.  It would be used before a
   compress() or compress2() call to allocate the destination buffer.
*/

ZEXTERN int ZEXPORT uncompress OF((Bytef *dest,   uLongf *destLen,
                                   const Bytef *source, uLong sourceLen));
/*
     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 uncompressed 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 or incomplete.  In
   the case where there is not enough room, uncompress() will fill the output
   buffer with the uncompressed data up to that point.
*/

                        /* gzip file access functions */

/*
     This library supports reading and writing files in gzip (.gz) format with
   an interface similar to that of stdio, using the functions that start with
   "gz".  The gzip format is different from the zlib format.  gzip is a gzip
   wrapper, documented in RFC 1952, wrapped around a deflate stream.
*/

typedef struct gzFile_s *gzFile;    /* semi-opaque gzip file descriptor */

/*
ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));

     Opens a gzip (.gz) file for reading or writing.  The mode parameter is as
   in fopen ("rb" or "wb") but can also include a compression level ("wb9") or
   a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only
   compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F'
   for fixed code compression as in "wb9F".  (See the description of
   deflateInit2 for more information about the strategy parameter.)  'T' will
   request transparent writing or appending with no compression and not using
   the gzip format.

     "a" can be used instead of "w" to request that the gzip stream that will
   be written be appended to the file.  "+" will result in an error, since
   reading and writing to the same gzip file is not supported.  The addition of
   "x" when writing will create the file exclusively, which fails if the file
   already exists.  On systems that support it, the addition of "e" when
   reading or writing will set the flag to close the file on an execve() call.

     These functions, as well as gzip, will read and decode a sequence of gzip
   streams in a file.  The append function of gzopen() can be used to create
   such a file.  (Also see gzflush() for another way to do this.)  When
   appending, gzopen does not test whether the file begins with a gzip stream,
   nor does it look for the end of the gzip streams to begin appending.  gzopen
   will simply append a gzip stream to the existing file.

     gzopen can be used to read a file which is not in gzip format; in this
   case gzread will directly read from the file without decompression.  When
   reading, this will be detected automatically by looking for the magic two-
   byte gzip header.

     gzopen returns NULL if the file could not be opened, if there was
   insufficient memory to allocate the gzFile state, or if an invalid mode was
   specified (an 'r', 'w', or 'a' was not provided, or '+' was provided).
   errno can be checked to determine if the reason gzopen failed was that the
   file could not be opened.
*/

ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
/*
     gzdopen associates a gzFile with the file descriptor fd.  File descriptors
   are obtained from calls like open, dup, creat, pipe or fileno (if the file
   has been previously opened with fopen).  The mode parameter is as in gzopen.

     The next call of gzclose on the returned gzFile will also close the file
   descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor
   fd.  If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd,
   mode);.  The duplicated descriptor should be saved to avoid a leak, since
   gzdopen does not close fd if it fails.  If you are using fileno() to get the
   file descriptor from a FILE *, then you will have to use dup() to avoid
   double-close()ing the file descriptor.  Both gzclose() and fclose() will
   close the associated file descriptor, so they need to have different file
   descriptors.

     gzdopen returns NULL if there was insufficient memory to allocate the
   gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not
   provided, or '+' was provided), or if fd is -1.  The file descriptor is not
   used until the next gz* read, write, seek, or close operation, so gzdopen
   will not detect if fd is invalid (unless fd is -1).
*/

ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size));
/*
     Set the internal buffer size used by this library's functions.  The
   default buffer size is 8192 bytes.  This function must be called after
   gzopen() or gzdopen(), and before any other calls that read or write the
   file.  The buffer memory allocation is always deferred to the first read or
   write.  Two buffers are allocated, either both of the specified size when
   writing, or one of the specified size and the other twice that size when
   reading.  A larger buffer size of, for example, 64K or 128K bytes will
   noticeably increase the speed of decompression (reading).

     The new buffer size also affects the maximum length for gzprintf().

     gzbuffer() returns 0 on success, or -1 on failure, such as being called
   too late.
*/

ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
/*
     Dynamically update the compression level or strategy.  See the description
   of deflateInit2 for the meaning of these parameters.

     gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not
   opened for writing.
*/

ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
/*
     Reads the given number of uncompressed bytes from the compressed file.  If
   the input file is not in gzip format, gzread copies the given number of
   bytes into the buffer directly from the file.

     After reaching the end of a gzip stream in the input, gzread will continue
   to read, looking for another gzip stream.  Any number of gzip streams may be
   concatenated in the input file, and will all be decompressed by gzread().
   If something other than a gzip stream is encountered after a gzip stream,
   that remaining trailing garbage is ignored (and no error is returned).

     gzread can be used to read a gzip file that is being concurrently written.
   Upon reaching the end of the input, gzread will return with the available
   data.  If the error code returned by gzerror is Z_OK or Z_BUF_ERROR, then
   gzclearerr can be used to clear the end of file indicator in order to permit
   gzread to be tried again.  Z_OK indicates that a gzip stream was completed
   on the last gzread.  Z_BUF_ERROR indicates that the input file ended in the
   middle of a gzip stream.  Note that gzread does not return -1 in the event
   of an incomplete gzip stream.  This error is deferred until gzclose(), which
   will return Z_BUF_ERROR if the last gzread ended in the middle of a gzip
   stream.  Alternatively, gzerror can be used before gzclose to detect this
   case.

     gzread returns the number of uncompressed bytes actually read, less than
   len for end of file, or -1 for error.
*/

ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
                                voidpc buf, unsigned len));
/*
     Writes the given number of uncompressed bytes into the compressed file.
   gzwrite returns the number of uncompressed bytes written or 0 in case of
   error.
*/

ZEXTERN int ZEXPORTVA gzprintf Z_ARG((gzFile file, const char *format, ...));
/*
     Converts, formats, and writes the arguments to the compressed file under
   control of the format string, as in fprintf.  gzprintf returns the number of
   uncompressed bytes actually written, or 0 in case of error.  The number of
   uncompressed bytes written is limited to 8191, or one less than the buffer
   size given to gzbuffer().  The caller should assure that this limit is not
   exceeded.  If it is exceeded, then gzprintf() will return an error (0) with
   nothing written.  In this case, there may also be a buffer overflow with
   unpredictable consequences, which is possible only if zlib was compiled with
   the insecure functions sprintf() or vsprintf() because the secure snprintf()
   or vsnprintf() functions were not available.  This can be determined using
   zlibCompileFlags().
*/

ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));
/*
     Writes the given null-terminated string to the compressed file, excluding
   the terminating null character.

     gzputs returns the number of characters written, or -1 in case of error.
*/

ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len));
/*
     Reads bytes from the compressed file until len-1 characters are read, or a
   newline character is read and transferred to buf, or an end-of-file
   condition is encountered.  If any characters are read or if len == 1, the
   string is terminated with a null character.  If no characters are read due
   to an end-of-file or len < 1, then the buffer is left untouched.

     gzgets returns buf which is a null-terminated string, or it returns NULL
   for end-of-file or in case of error.  If there was an error, the contents at
   buf are indeterminate.
*/

ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c));
/*
     Writes c, converted to an unsigned char, into the compressed file.  gzputc
   returns the value that was written, or -1 in case of error.
*/

ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
/*
     Reads one byte from the compressed file.  gzgetc returns this byte or -1
   in case of end of file or error.  This is implemented as a macro for speed.
   As such, it does not do all of the checking the other functions do.  I.e.
   it does not check to see if file is NULL, nor whether the structure file
   points to has been clobbered or not.
*/

ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file));
/*
     Push one character back onto the stream to be read as the first character
   on the next read.  At least one character of push-back is allowed.
   gzungetc() returns the character pushed, or -1 on failure.  gzungetc() will
   fail if c is -1, and may fail if a character has been pushed but not read
   yet.  If gzungetc is used immediately after gzopen or gzdopen, at least the
   output buffer size of pushed characters is allowed.  (See gzbuffer above.)
   The pushed character will be discarded if the stream is repositioned with
   gzseek() or gzrewind().
*/

ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush));
/*
     Flushes all pending output into the compressed file.  The parameter flush
   is as in the deflate() function.  The return value is the zlib error number
   (see function gzerror below).  gzflush is only permitted when writing.

     If the flush parameter is Z_FINISH, the remaining data is written and the
   gzip stream is completed in the output.  If gzwrite() is called again, a new
   gzip stream will be started in the output.  gzread() is able to read such
   concatented gzip streams.

     gzflush should be called only when strictly necessary because it will
   degrade compression if called too often.
*/

/*
ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file,
                                   z_off_t offset, int whence));

     Sets the starting position for the next gzread or gzwrite on the given
   compressed file.  The offset represents a number of bytes in the
   uncompressed data stream.  The whence parameter is defined as in lseek(2);
   the value SEEK_END is not supported.

     If the file is opened for reading, this function is emulated but can be
   extremely slow.  If the file is opened for writing, only forward seeks are
   supported; gzseek then compresses a sequence of zeroes up to the new
   starting position.

     gzseek returns the resulting offset location as measured in bytes from
   the beginning of the uncompressed stream, or -1 in case of error, in
   particular if the file is opened for writing and the new starting position
   would be before the current position.
*/

ZEXTERN int ZEXPORT    gzrewind OF((gzFile file));
/*
     Rewinds the given file. This function is supported only for reading.

     gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
*/

/*
ZEXTERN z_off_t ZEXPORT    gztell OF((gzFile file));

     Returns the starting position for the next gzread or gzwrite on the given
   compressed file.  This position represents a number of bytes in the
   uncompressed data stream, and is zero when starting, even if appending or
   reading a gzip stream from the middle of a file using gzdopen().

     gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
*/

/*
ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile file));

     Returns the current offset in the file being read or written.  This offset
   includes the count of bytes that precede the gzip stream, for example when
   appending or when using gzdopen() for reading.  When reading, the offset
   does not include as yet unused buffered input.  This information can be used
   for a progress indicator.  On error, gzoffset() returns -1.
*/

ZEXTERN int ZEXPORT gzeof OF((gzFile file));
/*
     Returns true (1) if the end-of-file indicator has been set while reading,
   false (0) otherwise.  Note that the end-of-file indicator is set only if the
   read tried to go past the end of the input, but came up short.  Therefore,
   just like feof(), gzeof() may return false even if there is no more data to
   read, in the event that the last read request was for the exact number of
   bytes remaining in the input file.  This will happen if the input file size
   is an exact multiple of the buffer size.

     If gzeof() returns true, then the read functions will return no more data,
   unless the end-of-file indicator is reset by gzclearerr() and the input file
   has grown since the previous end of file was detected.
*/

ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
/*
     Returns true (1) if file is being copied directly while reading, or false
   (0) if file is a gzip stream being decompressed.

     If the input file is empty, gzdirect() will return true, since the input
   does not contain a gzip stream.

     If gzdirect() is used immediately after gzopen() or gzdopen() it will
   cause buffers to be allocated to allow reading the file to determine if it
   is a gzip file.  Therefore if gzbuffer() is used, it should be called before
   gzdirect().

     When writing, gzdirect() returns true (1) if transparent writing was
   requested ("wT" for the gzopen() mode), or false (0) otherwise.  (Note:
   gzdirect() is not needed when writing.  Transparent writing must be
   explicitly requested, so the application already knows the answer.  When
   linking statically, using gzdirect() will include all of the zlib code for
   gzip file reading and decompression, which may not be desired.)
*/

ZEXTERN int ZEXPORT    gzclose OF((gzFile file));
/*
     Flushes all pending output if necessary, closes the compressed file and
   deallocates the (de)compression state.  Note that once file is closed, you
   cannot call gzerror with file, since its structures have been deallocated.
   gzclose must not be called more than once on the same file, just as free
   must not be called more than once on the same allocation.

     gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a
   file operation error, Z_MEM_ERROR if out of memory, Z_BUF_ERROR if the
   last read ended in the middle of a gzip stream, or Z_OK on success.
*/

ZEXTERN int ZEXPORT gzclose_r OF((gzFile file));
ZEXTERN int ZEXPORT gzclose_w OF((gzFile file));
/*
     Same as gzclose(), but gzclose_r() is only for use when reading, and
   gzclose_w() is only for use when writing or appending.  The advantage to
   using these instead of gzclose() is that they avoid linking in zlib
   compression or decompression code that is not used when only reading or only
   writing respectively.  If gzclose() is used, then both compression and
   decompression code will be included the application when linking to a static
   zlib library.
*/

ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum));
/*
     Returns the error message for the last error which occurred on the given
   compressed file.  errnum is set to zlib error number.  If an error occurred
   in the file system and not in the compression library, errnum is set to
   Z_ERRNO and the application may consult errno to get the exact error code.

     The application must not modify the returned string.  Future calls to
   this function may invalidate the previously returned string.  If file is
   closed, then the string previously returned by gzerror will no longer be
   available.

     gzerror() should be used to distinguish errors from end-of-file for those
   functions above that do not distinguish those cases in their return values.
*/

ZEXTERN void ZEXPORT gzclearerr OF((gzFile file));
/*
     Clears the error and end-of-file flags for file.  This is analogous to the
   clearerr() function in stdio.  This is useful for continuing to read a gzip
   file that is being written concurrently.
*/

#endif /* !Z_SOLO */

                        /* checksum functions */

/*
     These functions are not related to compression but are exported
   anyway because they might be useful in applications using the compression
   library.
*/

ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
/*
     Update a running Adler-32 checksum with the bytes buf[0..len-1] and
   return the updated checksum.  If buf is Z_NULL, this function returns the
   required initial value for the checksum.

     An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
   much faster.

   Usage example:

     uLong adler = adler32(0L, Z_NULL, 0);

     while (read_buffer(buffer, length) != EOF) {
       adler = adler32(adler, buffer, length);
     }
     if (adler != original_adler) error();
*/

/*
ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
                                          z_off_t len2));

     Combine two Adler-32 checksums into one.  For two sequences of bytes, seq1
   and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for
   each, adler1 and adler2.  adler32_combine() returns the Adler-32 checksum of
   seq1 and seq2 concatenated, requiring only adler1, adler2, and len2.  Note
   that the z_off_t type (like off_t) is a signed integer.  If len2 is
   negative, the result has no meaning or utility.
*/

ZEXTERN uLong ZEXPORT crc32   OF((uLong crc, const Bytef *buf, uInt len));
/*
     Update a running CRC-32 with the bytes buf[0..len-1] and return the
   updated CRC-32.  If buf is Z_NULL, this function returns the required
   initial value for the crc.  Pre- and post-conditioning (one's complement) is
   performed within this function so it shouldn't be done by the application.

   Usage example:

     uLong crc = crc32(0L, Z_NULL, 0);

     while (read_buffer(buffer, length) != EOF) {
       crc = crc32(crc, buffer, length);
     }
     if (crc != original_crc) error();
*/

/*
ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2));

     Combine two CRC-32 check values into one.  For two sequences of bytes,
   seq1 and seq2 with lengths len1 and len2, CRC-32 check values were
   calculated for each, crc1 and crc2.  crc32_combine() returns the CRC-32
   check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and
   len2.
*/


                        /* various hacks, don't look :) */

/* deflateInit and inflateInit are macros to allow checking the zlib version
 * and the compiler's view of z_stream:
 */
ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level,
                                     const char *version, int stream_size));
ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm,
                                     const char *version, int stream_size));
ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int  level, int  method,
                                      int windowBits, int memLevel,
                                      int strategy, const char *version,
                                      int stream_size));
ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int  windowBits,
                                      const char *version, int stream_size));
ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
                                         unsigned char FAR *window,
                                         const char *version,
                                         int stream_size));
#define deflateInit(strm, level) \
        deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
#define inflateInit(strm) \
        inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream))
#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
        deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
                      (strategy), ZLIB_VERSION, (int)sizeof(z_stream))
#define inflateInit2(strm, windowBits) \
        inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
                      (int)sizeof(z_stream))
#define inflateBackInit(strm, windowBits, window) \
        inflateBackInit_((strm), (windowBits), (window), \
                      ZLIB_VERSION, (int)sizeof(z_stream))

#ifndef Z_SOLO

/* gzgetc() macro and its supporting function and exposed data structure.  Note
 * that the real internal state is much larger than the exposed structure.
 * This abbreviated structure exposes just enough for the gzgetc() macro.  The
 * user should not mess with these exposed elements, since their names or
 * behavior could change in the future, perhaps even capriciously.  They can
 * only be used by the gzgetc() macro.  You have been warned.
 */
struct gzFile_s {
    unsigned have;
    unsigned char *next;
    z_off64_t pos;
};
ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file));  /* backward compatibility */
#ifdef Z_PREFIX_SET
#  undef z_gzgetc
#  define z_gzgetc(g) \
          ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : gzgetc(g))
#else
#  define gzgetc(g) \
          ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : gzgetc(g))
#endif

/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or
 * change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if
 * both are true, the application gets the *64 functions, and the regular
 * functions are changed to 64 bits) -- in case these are set on systems
 * without large file support, _LFS64_LARGEFILE must also be true
 */
#ifdef Z_LARGE64
   ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
   ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int));
   ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));
   ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));
   ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off64_t));
   ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t));
#endif

#if !defined(ZLIB_INTERNAL) && defined(Z_WANT64)
#  ifdef Z_PREFIX_SET
#    define z_gzopen z_gzopen64
#    define z_gzseek z_gzseek64
#    define z_gztell z_gztell64
#    define z_gzoffset z_gzoffset64
#    define z_adler32_combine z_adler32_combine64
#    define z_crc32_combine z_crc32_combine64
#  else
#    define gzopen gzopen64
#    define gzseek gzseek64
#    define gztell gztell64
#    define gzoffset gzoffset64
#    define adler32_combine adler32_combine64
#    define crc32_combine crc32_combine64
#  endif
#  ifndef Z_LARGE64
     ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
     ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int));
     ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile));
     ZEXTERN z_off_t ZEXPORT gzoffset64 OF((gzFile));
     ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
     ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
#  endif
#else
   ZEXTERN gzFile ZEXPORT gzopen OF((const char *, const char *));
   ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile, z_off_t, int));
   ZEXTERN z_off_t ZEXPORT gztell OF((gzFile));
   ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile));
   ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t));
   ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
#endif

#else /* Z_SOLO */

   ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t));
   ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));

#endif /* !Z_SOLO */

/* hack for buggy compilers */
#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL)
    struct internal_state {int dummy;};
#endif

/* undocumented functions */
ZEXTERN const char   * ZEXPORT zError           OF((int));
ZEXTERN int            ZEXPORT inflateSyncPoint OF((z_streamp));
ZEXTERN const z_crc_t FAR * ZEXPORT get_crc_table    OF((void));
ZEXTERN int            ZEXPORT inflateUndermine OF((z_streamp, int));
ZEXTERN int            ZEXPORT inflateResetKeep OF((z_streamp));
ZEXTERN int            ZEXPORT deflateResetKeep OF((z_streamp));
#if defined(_WIN32) && !defined(Z_SOLO)
ZEXTERN gzFile         ZEXPORT gzopen_w OF((const wchar_t *path,
                                            const char *mode));
#endif
#if defined(STDC) || defined(Z_HAVE_STDARG_H)
#  ifndef Z_SOLO
ZEXTERN int            ZEXPORTVA gzvprintf Z_ARG((gzFile file,
                                                  const char *format,
                                                  va_list va));
#  endif
#endif

#ifdef __cplusplus
}
#endif

#endif /* ZLIB_H */

PKGS_DIR		= $(TOP_DIR)/pkgs
# Must be absolute because of the cd dltest $(DLTEST_DIR)/configure below.
DLTEST_DIR		= @TCL_SRC_DIR@/unix/dltest
# Must be absolute to so the corresponding tcltest's tcl_library is absolute.
TCL_BUILDTIME_LIBRARY	= @TCL_SRC_DIR@/library

ZLIB_DIR		= ${COMPAT_DIR}/zlib
MZLIB_DIR		= ${COMPAT_DIR}/miniz

ZLIB_INCLUDE		= @ZLIB_INCLUDE@

CC			= @CC@
#CC			= purify -best-effort @CC@ -DPURIFY

# Flags to be passed to installManPage to control how the manpages should be
# installed (symlinks, compression, package name suffix).

MAC_OSX_OBJS = tclMacOSXBundle.o tclMacOSXFCmd.o tclMacOSXNotify.o

CYGWIN_OBJS = tclWinError.o

DTRACE_OBJ = tclDTrace.o

#ZLIB_OBJS = Zadler32.o Zcompress.o Zcrc32.o Zdeflate.o Zinfback.o \
#	Zinffast.o Zinflate.o Zinftrees.o Ztrees.o Zuncompr.o Zzutil.o

ZLIB_OBJS = miniz.o

TCL_OBJS = ${GENERIC_OBJS} ${UNIX_OBJS} ${NOTIFY_OBJS} ${COMPAT_OBJS} \
	${OO_OBJS} @DL_OBJS@ @PLAT_OBJS@

OBJS = ${TCL_OBJS} ${TOMMATH_OBJS} @DTRACE_OBJ@ @ZLIB_OBJS@

TCL_DECLS = \

CYGWIN_SRCS = \
	$(TOP_DIR)/win/tclWinError.c

DTRACE_HDR = tclDTrace.h

DTRACE_SRC = $(GENERIC_DIR)/tclDTrace.d

#ZLIB_SRCS = \
#	$(ZLIB_DIR)/adler32.c \
#	$(ZLIB_DIR)/compress.c \
#	$(ZLIB_DIR)/crc32.c \
#	$(ZLIB_DIR)/deflate.c \
#	$(ZLIB_DIR)/infback.c \
#	$(ZLIB_DIR)/inffast.c \
#	$(ZLIB_DIR)/inflate.c \
#	$(ZLIB_DIR)/inftrees.c \
#	$(ZLIB_DIR)/trees.c \
#	$(ZLIB_DIR)/uncompr.c \
#	$(ZLIB_DIR)/zutil.c

ZLIB_SRCS=$(MZLIB_DIR)/miniz.c

# Note: don't include DL_SRCS or MAC_OSX_SRCS in SRCS: most of those files
# won't compile on the current machine, and they will cause problems for
# things like "make depend".

SRCS = $(GENERIC_SRCS) $(TOMMATH_SRCS) $(UNIX_SRCS) $(NOTIFY_SRCS) \
	$(OO_SRCS) $(STUB_SRCS) @PLAT_SRCS@ @ZLIB_SRCS@

waitpid.o: $(COMPAT_DIR)/waitpid.c
	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/waitpid.c

fake-rfc2553.o: $(COMPAT_DIR)/fake-rfc2553.c
	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/fake-rfc2553.c

# For building miniz
miniz.o: $(MZLIB_DIR)/miniz.c
	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(MZLIB_DIR)/miniz.c

# For building zlib, only used in some build configurations
#Zadler32.o: $(ZLIB_DIR)/adler32.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/adler32.c
#Zcompress.o: $(ZLIB_DIR)/compress.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/compress.c
#Zcrc32.o:    $(ZLIB_DIR)/crc32.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/crc32.c
#Zdeflate.o:  $(ZLIB_DIR)/deflate.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/deflate.c
#Zinfback.o:  $(ZLIB_DIR)/infback.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/infback.c
#Zinffast.o:  $(ZLIB_DIR)/inffast.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/inffast.c
#Zinflate.o:  $(ZLIB_DIR)/inflate.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/inflate.c
#Zinftrees.o: $(ZLIB_DIR)/inftrees.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/inftrees.c
#Ztrees.o:    $(ZLIB_DIR)/trees.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/trees.c
#Zuncompr.o:  $(ZLIB_DIR)/uncompr.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/uncompr.c
#Zzutil.o:    $(ZLIB_DIR)/zutil.c
#	$(CC) -c -o $@ $(CC_SWITCHES) -I$(ZLIB_DIR) $(ZLIB_DIR)/zutil.c

#--------------------------------------------------------------------------
# Stub library binaries, these must be compiled for use in a shared library
# even though they will be placed in a static archive
#--------------------------------------------------------------------------

tclStubLib.o: $(GENERIC_DIR)/tclStubLib.c

TOP_DIR			= $(shell cd @srcdir@/..; pwd -P)
GENERIC_DIR		= $(TOP_DIR)/generic
TOMMATH_DIR		= $(TOP_DIR)/libtommath
WIN_DIR			= $(TOP_DIR)/win
COMPAT_DIR		= $(TOP_DIR)/compat
PKGS_DIR		= $(TOP_DIR)/pkgs
ZLIB_DIR		= $(COMPAT_DIR)/zlib
MZLIB_DIR		= $(COMPAT_DIR)/miniz

# Converts a POSIX path to a Windows native path.
CYGPATH			= @CYGPATH@

GENERIC_DIR_NATIVE	= $(shell $(CYGPATH) '$(GENERIC_DIR)' | sed 's!\\!/!g')
TOMMATH_DIR_NATIVE	= $(shell $(CYGPATH) '$(TOMMATH_DIR)' | sed 's!\\!/!g')
WIN_DIR_NATIVE		= $(shell $(CYGPATH) '$(WIN_DIR)' | sed 's!\\!/!g')

TCL_EXE			= @TCL_EXE@

@SET_MAKE@

# Setting the VPATH variable to a list of paths will cause the Makefile to
# look into these paths when resolving .c to .obj dependencies.

VPATH = $(GENERIC_DIR):$(TOMMATH_DIR):$(WIN_DIR):$(COMPAT_DIR):$(MZLIB_DIR)

AR		= @AR@
RANLIB		= @RANLIB@
CC		= @CC@
RC		= @RC@
RES		= @RES@
AC_FLAGS	= @EXTRA_CFLAGS@ @DEFS@

STUB_OBJS = \
	tclStubLib.$(OBJEXT) \
	tclTomMathStubLib.$(OBJEXT) \
	tclOOStubLib.$(OBJEXT)

TCLSH_OBJS = tclAppInit.$(OBJEXT)

ZLIB_OBJS = miniz.$(OBJEXT)
#ZLIB_OBJS = \
#	adler32.$(OBJEXT) \
#	compress.$(OBJEXT) \
#	crc32.$(OBJEXT) \
#	deflate.$(OBJEXT) \
#	infback.$(OBJEXT) \
#	inffast.$(OBJEXT) \
#	inflate.$(OBJEXT) \
#	inftrees.$(OBJEXT) \
#	trees.$(OBJEXT) \
#	uncompr.$(OBJEXT) \
#	zutil.$(OBJEXT)

TCL_OBJS = ${GENERIC_OBJS} $(TOMMATH_OBJS) ${WIN_OBJS} @ZLIB_OBJS@

TCL_DOCS = "$(ROOT_DIR_NATIVE)"/doc/*.[13n]

all: binaries libraries doc packages

	$(TMP_DIR)\tclTomMathInterface.obj \
	$(TMP_DIR)\tclTrace.obj \
	$(TMP_DIR)\tclUtf.obj \
	$(TMP_DIR)\tclUtil.obj \
	$(TMP_DIR)\tclVar.obj \
	$(TMP_DIR)\tclZlib.obj

ZLIBOBJS = $(TMP_DIR)\miniz.obj

#ZLIBOBJS = \
#	$(TMP_DIR)\adler32.obj \
#	$(TMP_DIR)\compress.obj \
#	$(TMP_DIR)\crc32.obj \
#	$(TMP_DIR)\deflate.obj \
#	$(TMP_DIR)\infback.obj \
#	$(TMP_DIR)\inffast.obj \
#	$(TMP_DIR)\inflate.obj \
#	$(TMP_DIR)\inftrees.obj \
#	$(TMP_DIR)\trees.obj \
#	$(TMP_DIR)\uncompr.obj \
#	$(TMP_DIR)\zutil.obj

TOMMATHOBJS = \
	$(TMP_DIR)\bncore.obj \
	$(TMP_DIR)\bn_reverse.obj \
	$(TMP_DIR)\bn_fast_s_mp_mul_digs.obj \
	$(TMP_DIR)\bn_fast_s_mp_sqr.obj \
	$(TMP_DIR)\bn_mp_add.obj \

$<
<<

{$(COMPATDIR)\zlib}.c{$(TMP_DIR)}.obj::
	$(cc32) $(TCL_CFLAGS) -DBUILD_tcl -Fo$(TMP_DIR)\ @<<
$<
<<

{$(COMPATDIR)\miniz}.c{$(TMP_DIR)}.obj::
	$(cc32) $(TCL_CFLAGS) -DBUILD_tcl -Fo$(TMP_DIR)\ @<<
$<
<<

{$(WINDIR)}.rc{$(TMP_DIR)}.res:
	$(rc32) -fo $@ -r -i "$(GENERICDIR)" -i "$(TMP_DIR)" \
	    -d DEBUG=$(DEBUG) -d UNCHECKED=$(UNCHECKED) \
	    -d TCL_THREADS=$(TCL_THREADS) \
	    -d STATIC_BUILD=$(STATIC_BUILD) \
	    $<