miniz.h (69441B)
1#define MINIZ_EXPORT 2/* miniz.c 2.2.0 - public domain deflate/inflate, zlib-subset, ZIP reading/writing/appending, PNG writing 3 See "unlicense" statement at the end of this file. 4 Rich Geldreich <richgel99@gmail.com>, last updated Oct. 13, 2013 5 Implements RFC 1950: http://www.ietf.org/rfc/rfc1950.txt and RFC 1951: http://www.ietf.org/rfc/rfc1951.txt 6 7 Most API's defined in miniz.c are optional. For example, to disable the archive related functions just define 8 MINIZ_NO_ARCHIVE_APIS, or to get rid of all stdio usage define MINIZ_NO_STDIO (see the list below for more macros). 9 10 * Low-level Deflate/Inflate implementation notes: 11 12 Compression: Use the "tdefl" API's. The compressor supports raw, static, and dynamic blocks, lazy or 13 greedy parsing, match length filtering, RLE-only, and Huffman-only streams. It performs and compresses 14 approximately as well as zlib. 15 16 Decompression: Use the "tinfl" API's. The entire decompressor is implemented as a single function 17 coroutine: see tinfl_decompress(). It supports decompression into a 32KB (or larger power of 2) wrapping buffer, or into a memory 18 block large enough to hold the entire file. 19 20 The low-level tdefl/tinfl API's do not make any use of dynamic memory allocation. 21 22 * zlib-style API notes: 23 24 miniz.c implements a fairly large subset of zlib. There's enough functionality present for it to be a drop-in 25 zlib replacement in many apps: 26 The z_stream struct, optional memory allocation callbacks 27 deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound 28 inflateInit/inflateInit2/inflate/inflateReset/inflateEnd 29 compress, compress2, compressBound, uncompress 30 CRC-32, Adler-32 - Using modern, minimal code size, CPU cache friendly routines. 31 Supports raw deflate streams or standard zlib streams with adler-32 checking. 32 33 Limitations: 34 The callback API's are not implemented yet. No support for gzip headers or zlib static dictionaries. 35 I've tried to closely emulate zlib's various flavors of stream flushing and return status codes, but 36 there are no guarantees that miniz.c pulls this off perfectly. 37 38 * PNG writing: See the tdefl_write_image_to_png_file_in_memory() function, originally written by 39 Alex Evans. Supports 1-4 bytes/pixel images. 40 41 * ZIP archive API notes: 42 43 The ZIP archive API's where designed with simplicity and efficiency in mind, with just enough abstraction to 44 get the job done with minimal fuss. There are simple API's to retrieve file information, read files from 45 existing archives, create new archives, append new files to existing archives, or clone archive data from 46 one archive to another. It supports archives located in memory or the heap, on disk (using stdio.h), 47 or you can specify custom file read/write callbacks. 48 49 - Archive reading: Just call this function to read a single file from a disk archive: 50 51 void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, 52 size_t *pSize, mz_uint zip_flags); 53 54 For more complex cases, use the "mz_zip_reader" functions. Upon opening an archive, the entire central 55 directory is located and read as-is into memory, and subsequent file access only occurs when reading individual files. 56 57 - Archives file scanning: The simple way is to use this function to scan a loaded archive for a specific file: 58 59 int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags); 60 61 The locate operation can optionally check file comments too, which (as one example) can be used to identify 62 multiple versions of the same file in an archive. This function uses a simple linear search through the central 63 directory, so it's not very fast. 64 65 Alternately, you can iterate through all the files in an archive (using mz_zip_reader_get_num_files()) and 66 retrieve detailed info on each file by calling mz_zip_reader_file_stat(). 67 68 - Archive creation: Use the "mz_zip_writer" functions. The ZIP writer immediately writes compressed file data 69 to disk and builds an exact image of the central directory in memory. The central directory image is written 70 all at once at the end of the archive file when the archive is finalized. 71 72 The archive writer can optionally align each file's local header and file data to any power of 2 alignment, 73 which can be useful when the archive will be read from optical media. Also, the writer supports placing 74 arbitrary data blobs at the very beginning of ZIP archives. Archives written using either feature are still 75 readable by any ZIP tool. 76 77 - Archive appending: The simple way to add a single file to an archive is to call this function: 78 79 mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name, 80 const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags); 81 82 The archive will be created if it doesn't already exist, otherwise it'll be appended to. 83 Note the appending is done in-place and is not an atomic operation, so if something goes wrong 84 during the operation it's possible the archive could be left without a central directory (although the local 85 file headers and file data will be fine, so the archive will be recoverable). 86 87 For more complex archive modification scenarios: 88 1. The safest way is to use a mz_zip_reader to read the existing archive, cloning only those bits you want to 89 preserve into a new archive using using the mz_zip_writer_add_from_zip_reader() function (which compiles the 90 compressed file data as-is). When you're done, delete the old archive and rename the newly written archive, and 91 you're done. This is safe but requires a bunch of temporary disk space or heap memory. 92 93 2. Or, you can convert an mz_zip_reader in-place to an mz_zip_writer using mz_zip_writer_init_from_reader(), 94 append new files as needed, then finalize the archive which will write an updated central directory to the 95 original archive. (This is basically what mz_zip_add_mem_to_archive_file_in_place() does.) There's a 96 possibility that the archive's central directory could be lost with this method if anything goes wrong, though. 97 98 - ZIP archive support limitations: 99 No spanning support. Extraction functions can only handle unencrypted, stored or deflated files. 100 Requires streams capable of seeking. 101 102 * This is a header file library, like stb_image.c. To get only a header file, either cut and paste the 103 below header, or create miniz.h, #define MINIZ_HEADER_FILE_ONLY, and then include miniz.c from it. 104 105 * Important: For best perf. be sure to customize the below macros for your target platform: 106 #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1 107 #define MINIZ_LITTLE_ENDIAN 1 108 #define MINIZ_HAS_64BIT_REGISTERS 1 109 110 * On platforms using glibc, Be sure to "#define _LARGEFILE64_SOURCE 1" before including miniz.c to ensure miniz 111 uses the 64-bit variants: fopen64(), stat64(), etc. Otherwise you won't be able to process large files 112 (i.e. 32-bit stat() fails for me on files > 0x7FFFFFFF bytes). 113*/ 114#pragma once 115 116 117 118/* Defines to completely disable specific portions of miniz.c: 119 If all macros here are defined the only functionality remaining will be CRC-32, adler-32, tinfl, and tdefl. */ 120 121/* Define MINIZ_NO_STDIO to disable all usage and any functions which rely on stdio for file I/O. */ 122/*#define MINIZ_NO_STDIO */ 123 124/* If MINIZ_NO_TIME is specified then the ZIP archive functions will not be able to get the current time, or */ 125/* get/set file times, and the C run-time funcs that get/set times won't be called. */ 126/* The current downside is the times written to your archives will be from 1979. */ 127/*#define MINIZ_NO_TIME */ 128 129/* Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's. */ 130/*#define MINIZ_NO_ARCHIVE_APIS */ 131 132/* Define MINIZ_NO_ARCHIVE_WRITING_APIS to disable all writing related ZIP archive API's. */ 133/*#define MINIZ_NO_ARCHIVE_WRITING_APIS */ 134 135/* Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style compression/decompression API's. */ 136/*#define MINIZ_NO_ZLIB_APIS */ 137 138/* Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to prevent conflicts against stock zlib. */ 139/*#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES */ 140 141/* Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and realloc. 142 Note if MINIZ_NO_MALLOC is defined then the user must always provide custom user alloc/free/realloc 143 callbacks to the zlib and archive API's, and a few stand-alone helper API's which don't provide custom user 144 functions (such as tdefl_compress_mem_to_heap() and tinfl_decompress_mem_to_heap()) won't work. */ 145/*#define MINIZ_NO_MALLOC */ 146 147#if defined(__TINYC__) && (defined(__linux) || defined(__linux__)) 148/* TODO: Work around "error: include file 'sys\utime.h' when compiling with tcc on Linux */ 149#define MINIZ_NO_TIME 150#endif 151 152#include <stddef.h> 153 154#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS) 155#include <time.h> 156#endif 157 158#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || defined(__i386) || defined(__i486__) || defined(__i486) || defined(i386) || defined(__ia64__) || defined(__x86_64__) 159/* MINIZ_X86_OR_X64_CPU is only used to help set the below macros. */ 160#define MINIZ_X86_OR_X64_CPU 1 161#else 162#define MINIZ_X86_OR_X64_CPU 0 163#endif 164 165#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU 166/* Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian. */ 167#define MINIZ_LITTLE_ENDIAN 1 168#else 169#define MINIZ_LITTLE_ENDIAN 0 170#endif 171 172/* Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES only if not set */ 173#if !defined(MINIZ_USE_UNALIGNED_LOADS_AND_STORES) 174#if MINIZ_X86_OR_X64_CPU 175/* Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient integer loads and stores from unaligned addresses. */ 176#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1 177#define MINIZ_UNALIGNED_USE_MEMCPY 178#else 179#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0 180#endif 181#endif 182 183#if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__) || defined(__ia64__) || defined(__x86_64__) 184/* 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). */ 185#define MINIZ_HAS_64BIT_REGISTERS 1 186#else 187#define MINIZ_HAS_64BIT_REGISTERS 0 188#endif 189 190#ifdef __cplusplus 191extern "C" { 192#endif 193 194/* ------------------- zlib-style API Definitions. */ 195 196/* 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! */ 197typedef unsigned long mz_ulong; 198 199/* 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. */ 200MINIZ_EXPORT void mz_free(void *p); 201 202#define MZ_ADLER32_INIT (1) 203/* mz_adler32() returns the initial adler-32 value to use when called with ptr==NULL. */ 204MINIZ_EXPORT mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len); 205 206#define MZ_CRC32_INIT (0) 207/* mz_crc32() returns the initial CRC-32 value to use when called with ptr==NULL. */ 208MINIZ_EXPORT mz_ulong mz_crc32(mz_ulong crc, const unsigned char *ptr, size_t buf_len); 209 210/* Compression strategies. */ 211enum 212{ 213 MZ_DEFAULT_STRATEGY = 0, 214 MZ_FILTERED = 1, 215 MZ_HUFFMAN_ONLY = 2, 216 MZ_RLE = 3, 217 MZ_FIXED = 4 218}; 219 220/* Method */ 221#define MZ_DEFLATED 8 222 223/* Heap allocation callbacks. 224Note that mz_alloc_func parameter types purposely differ from zlib's: items/size is size_t, not unsigned long. */ 225typedef void *(*mz_alloc_func)(void *opaque, size_t items, size_t size); 226typedef void (*mz_free_func)(void *opaque, void *address); 227typedef void *(*mz_realloc_func)(void *opaque, void *address, size_t items, size_t size); 228 229/* 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. */ 230enum 231{ 232 MZ_NO_COMPRESSION = 0, 233 MZ_BEST_SPEED = 1, 234 MZ_BEST_COMPRESSION = 9, 235 MZ_UBER_COMPRESSION = 10, 236 MZ_DEFAULT_LEVEL = 6, 237 MZ_DEFAULT_COMPRESSION = -1 238}; 239 240#define MZ_VERSION "10.2.0" 241#define MZ_VERNUM 0xA100 242#define MZ_VER_MAJOR 10 243#define MZ_VER_MINOR 2 244#define MZ_VER_REVISION 0 245#define MZ_VER_SUBREVISION 0 246 247#ifndef MINIZ_NO_ZLIB_APIS 248 249/* 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). */ 250enum 251{ 252 MZ_NO_FLUSH = 0, 253 MZ_PARTIAL_FLUSH = 1, 254 MZ_SYNC_FLUSH = 2, 255 MZ_FULL_FLUSH = 3, 256 MZ_FINISH = 4, 257 MZ_BLOCK = 5 258}; 259 260/* Return status codes. MZ_PARAM_ERROR is non-standard. */ 261enum 262{ 263 MZ_OK = 0, 264 MZ_STREAM_END = 1, 265 MZ_NEED_DICT = 2, 266 MZ_ERRNO = -1, 267 MZ_STREAM_ERROR = -2, 268 MZ_DATA_ERROR = -3, 269 MZ_MEM_ERROR = -4, 270 MZ_BUF_ERROR = -5, 271 MZ_VERSION_ERROR = -6, 272 MZ_PARAM_ERROR = -10000 273}; 274 275/* Window bits */ 276#define MZ_DEFAULT_WINDOW_BITS 15 277 278struct mz_internal_state; 279 280/* Compression/decompression stream struct. */ 281typedef struct mz_stream_s 282{ 283 const unsigned char *next_in; /* pointer to next byte to read */ 284 unsigned int avail_in; /* number of bytes available at next_in */ 285 mz_ulong total_in; /* total number of bytes consumed so far */ 286 287 unsigned char *next_out; /* pointer to next byte to write */ 288 unsigned int avail_out; /* number of bytes that can be written to next_out */ 289 mz_ulong total_out; /* total number of bytes produced so far */ 290 291 char *msg; /* error msg (unused) */ 292 struct mz_internal_state *state; /* internal state, allocated by zalloc/zfree */ 293 294 mz_alloc_func zalloc; /* optional heap allocation function (defaults to malloc) */ 295 mz_free_func zfree; /* optional heap free function (defaults to free) */ 296 void *opaque; /* heap alloc function user pointer */ 297 298 int data_type; /* data_type (unused) */ 299 mz_ulong adler; /* adler32 of the source or uncompressed data */ 300 mz_ulong reserved; /* not used */ 301} mz_stream; 302 303typedef mz_stream *mz_streamp; 304 305/* Returns the version string of miniz.c. */ 306MINIZ_EXPORT const char *mz_version(void); 307 308/* mz_deflateInit() initializes a compressor with default options: */ 309/* Parameters: */ 310/* pStream must point to an initialized mz_stream struct. */ 311/* level must be between [MZ_NO_COMPRESSION, MZ_BEST_COMPRESSION]. */ 312/* level 1 enables a specially optimized compression function that's been optimized purely for performance, not ratio. */ 313/* (This special func. is currently only enabled when MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are defined.) */ 314/* Return values: */ 315/* MZ_OK on success. */ 316/* MZ_STREAM_ERROR if the stream is bogus. */ 317/* MZ_PARAM_ERROR if the input parameters are bogus. */ 318/* MZ_MEM_ERROR on out of memory. */ 319MINIZ_EXPORT int mz_deflateInit(mz_streamp pStream, int level); 320 321/* mz_deflateInit2() is like mz_deflate(), except with more control: */ 322/* Additional parameters: */ 323/* method must be MZ_DEFLATED */ 324/* 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) */ 325/* mem_level must be between [1, 9] (it's checked but ignored by miniz.c) */ 326MINIZ_EXPORT int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy); 327 328/* Quickly resets a compressor without having to reallocate anything. Same as calling mz_deflateEnd() followed by mz_deflateInit()/mz_deflateInit2(). */ 329MINIZ_EXPORT int mz_deflateReset(mz_streamp pStream); 330 331/* mz_deflate() compresses the input to output, consuming as much of the input and producing as much output as possible. */ 332/* Parameters: */ 333/* 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. */ 334/* flush may be MZ_NO_FLUSH, MZ_PARTIAL_FLUSH/MZ_SYNC_FLUSH, MZ_FULL_FLUSH, or MZ_FINISH. */ 335/* Return values: */ 336/* 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). */ 337/* 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. */ 338/* MZ_STREAM_ERROR if the stream is bogus. */ 339/* MZ_PARAM_ERROR if one of the parameters is invalid. */ 340/* 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.) */ 341MINIZ_EXPORT int mz_deflate(mz_streamp pStream, int flush); 342 343/* mz_deflateEnd() deinitializes a compressor: */ 344/* Return values: */ 345/* MZ_OK on success. */ 346/* MZ_STREAM_ERROR if the stream is bogus. */ 347MINIZ_EXPORT int mz_deflateEnd(mz_streamp pStream); 348 349/* 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. */ 350MINIZ_EXPORT mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len); 351 352/* Single-call compression functions mz_compress() and mz_compress2(): */ 353/* Returns MZ_OK on success, or one of the error codes from mz_deflate() on failure. */ 354MINIZ_EXPORT int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len); 355MINIZ_EXPORT int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len, int level); 356 357/* mz_compressBound() returns a (very) conservative upper bound on the amount of data that could be generated by calling mz_compress(). */ 358MINIZ_EXPORT mz_ulong mz_compressBound(mz_ulong source_len); 359 360/* Initializes a decompressor. */ 361MINIZ_EXPORT int mz_inflateInit(mz_streamp pStream); 362 363/* 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: */ 364/* window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate). */ 365MINIZ_EXPORT int mz_inflateInit2(mz_streamp pStream, int window_bits); 366 367/* Quickly resets a compressor without having to reallocate anything. Same as calling mz_inflateEnd() followed by mz_inflateInit()/mz_inflateInit2(). */ 368MINIZ_EXPORT int mz_inflateReset(mz_streamp pStream); 369 370/* 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. */ 371/* Parameters: */ 372/* 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. */ 373/* flush may be MZ_NO_FLUSH, MZ_SYNC_FLUSH, or MZ_FINISH. */ 374/* 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). */ 375/* 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. */ 376/* Return values: */ 377/* 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. */ 378/* 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. */ 379/* MZ_STREAM_ERROR if the stream is bogus. */ 380/* MZ_DATA_ERROR if the deflate stream is invalid. */ 381/* MZ_PARAM_ERROR if one of the parameters is invalid. */ 382/* 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 */ 383/* with more input data, or with more room in the output buffer (except when using single call decompression, described above). */ 384MINIZ_EXPORT int mz_inflate(mz_streamp pStream, int flush); 385 386/* Deinitializes a decompressor. */ 387MINIZ_EXPORT int mz_inflateEnd(mz_streamp pStream); 388 389/* Single-call decompression. */ 390/* Returns MZ_OK on success, or one of the error codes from mz_inflate() on failure. */ 391MINIZ_EXPORT int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len); 392MINIZ_EXPORT int mz_uncompress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong *pSource_len); 393 394/* Returns a string description of the specified error code, or NULL if the error code is invalid. */ 395MINIZ_EXPORT const char *mz_error(int err); 396 397/* 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. */ 398/* Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility if you use zlib in the same project. */ 399#ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES 400typedef unsigned char Byte; 401typedef unsigned int uInt; 402typedef mz_ulong uLong; 403typedef Byte Bytef; 404typedef uInt uIntf; 405typedef char charf; 406typedef int intf; 407typedef void *voidpf; 408typedef uLong uLongf; 409typedef void *voidp; 410typedef void *const voidpc; 411#define Z_NULL 0 412#define Z_NO_FLUSH MZ_NO_FLUSH 413#define Z_PARTIAL_FLUSH MZ_PARTIAL_FLUSH 414#define Z_SYNC_FLUSH MZ_SYNC_FLUSH 415#define Z_FULL_FLUSH MZ_FULL_FLUSH 416#define Z_FINISH MZ_FINISH 417#define Z_BLOCK MZ_BLOCK 418#define Z_OK MZ_OK 419#define Z_STREAM_END MZ_STREAM_END 420#define Z_NEED_DICT MZ_NEED_DICT 421#define Z_ERRNO MZ_ERRNO 422#define Z_STREAM_ERROR MZ_STREAM_ERROR 423#define Z_DATA_ERROR MZ_DATA_ERROR 424#define Z_MEM_ERROR MZ_MEM_ERROR 425#define Z_BUF_ERROR MZ_BUF_ERROR 426#define Z_VERSION_ERROR MZ_VERSION_ERROR 427#define Z_PARAM_ERROR MZ_PARAM_ERROR 428#define Z_NO_COMPRESSION MZ_NO_COMPRESSION 429#define Z_BEST_SPEED MZ_BEST_SPEED 430#define Z_BEST_COMPRESSION MZ_BEST_COMPRESSION 431#define Z_DEFAULT_COMPRESSION MZ_DEFAULT_COMPRESSION 432#define Z_DEFAULT_STRATEGY MZ_DEFAULT_STRATEGY 433#define Z_FILTERED MZ_FILTERED 434#define Z_HUFFMAN_ONLY MZ_HUFFMAN_ONLY 435#define Z_RLE MZ_RLE 436#define Z_FIXED MZ_FIXED 437#define Z_DEFLATED MZ_DEFLATED 438#define Z_DEFAULT_WINDOW_BITS MZ_DEFAULT_WINDOW_BITS 439#define alloc_func mz_alloc_func 440#define free_func mz_free_func 441#define internal_state mz_internal_state 442#define z_stream mz_stream 443#define deflateInit mz_deflateInit 444#define deflateInit2 mz_deflateInit2 445#define deflateReset mz_deflateReset 446#define deflate mz_deflate 447#define deflateEnd mz_deflateEnd 448#define deflateBound mz_deflateBound 449#define compress mz_compress 450#define compress2 mz_compress2 451#define compressBound mz_compressBound 452#define inflateInit mz_inflateInit 453#define inflateInit2 mz_inflateInit2 454#define inflateReset mz_inflateReset 455#define inflate mz_inflate 456#define inflateEnd mz_inflateEnd 457#define uncompress mz_uncompress 458#define uncompress2 mz_uncompress2 459#define crc32 mz_crc32 460#define adler32 mz_adler32 461#define MAX_WBITS 15 462#define MAX_MEM_LEVEL 9 463#define zError mz_error 464#define ZLIB_VERSION MZ_VERSION 465#define ZLIB_VERNUM MZ_VERNUM 466#define ZLIB_VER_MAJOR MZ_VER_MAJOR 467#define ZLIB_VER_MINOR MZ_VER_MINOR 468#define ZLIB_VER_REVISION MZ_VER_REVISION 469#define ZLIB_VER_SUBREVISION MZ_VER_SUBREVISION 470#define zlibVersion mz_version 471#define zlib_version mz_version() 472#endif /* #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES */ 473 474#endif /* MINIZ_NO_ZLIB_APIS */ 475 476#ifdef __cplusplus 477} 478#endif 479 480 481 482 483 484#pragma once 485#include <assert.h> 486#include <stdint.h> 487#include <stdlib.h> 488#include <string.h> 489 490 491 492/* ------------------- Types and macros */ 493typedef unsigned char mz_uint8; 494typedef signed short mz_int16; 495typedef unsigned short mz_uint16; 496typedef unsigned int mz_uint32; 497typedef unsigned int mz_uint; 498typedef int64_t mz_int64; 499typedef uint64_t mz_uint64; 500typedef int mz_bool; 501 502#define MZ_FALSE (0) 503#define MZ_TRUE (1) 504 505/* Works around MSVC's spammy "warning C4127: conditional expression is constant" message. */ 506#ifdef _MSC_VER 507#define MZ_MACRO_END while (0, 0) 508#else 509#define MZ_MACRO_END while (0) 510#endif 511 512#ifdef MINIZ_NO_STDIO 513#define MZ_FILE void * 514#else 515#include <stdio.h> 516#define MZ_FILE FILE 517#endif /* #ifdef MINIZ_NO_STDIO */ 518 519#ifdef MINIZ_NO_TIME 520typedef struct mz_dummy_time_t_tag 521{ 522 int m_dummy; 523} mz_dummy_time_t; 524#define MZ_TIME_T mz_dummy_time_t 525#else 526#define MZ_TIME_T time_t 527#endif 528 529#define MZ_ASSERT(x) assert(x) 530 531#ifdef MINIZ_NO_MALLOC 532#define MZ_MALLOC(x) NULL 533#define MZ_FREE(x) (void)x, ((void)0) 534#define MZ_REALLOC(p, x) NULL 535#else 536#define MZ_MALLOC(x) malloc(x) 537#define MZ_FREE(x) free(x) 538#define MZ_REALLOC(p, x) realloc(p, x) 539#endif 540 541#define MZ_MAX(a, b) (((a) > (b)) ? (a) : (b)) 542#define MZ_MIN(a, b) (((a) < (b)) ? (a) : (b)) 543#define MZ_CLEAR_OBJ(obj) memset(&(obj), 0, sizeof(obj)) 544 545#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN 546#define MZ_READ_LE16(p) *((const mz_uint16 *)(p)) 547#define MZ_READ_LE32(p) *((const mz_uint32 *)(p)) 548#else 549#define MZ_READ_LE16(p) ((mz_uint32)(((const mz_uint8 *)(p))[0]) | ((mz_uint32)(((const mz_uint8 *)(p))[1]) << 8U)) 550#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)) 551#endif 552 553#define MZ_READ_LE64(p) (((mz_uint64)MZ_READ_LE32(p)) | (((mz_uint64)MZ_READ_LE32((const mz_uint8 *)(p) + sizeof(mz_uint32))) << 32U)) 554 555#ifdef _MSC_VER 556#define MZ_FORCEINLINE __forceinline 557#elif defined(__GNUC__) 558#define MZ_FORCEINLINE __inline__ __attribute__((__always_inline__)) 559#else 560#define MZ_FORCEINLINE inline 561#endif 562 563#ifdef __cplusplus 564extern "C" { 565#endif 566 567extern MINIZ_EXPORT void *miniz_def_alloc_func(void *opaque, size_t items, size_t size); 568extern MINIZ_EXPORT void miniz_def_free_func(void *opaque, void *address); 569extern MINIZ_EXPORT void *miniz_def_realloc_func(void *opaque, void *address, size_t items, size_t size); 570 571#define MZ_UINT16_MAX (0xFFFFU) 572#define MZ_UINT32_MAX (0xFFFFFFFFU) 573 574#ifdef __cplusplus 575} 576#endif 577 #pragma once 578 579 580#ifdef __cplusplus 581extern "C" { 582#endif 583/* ------------------- Low-level Compression API Definitions */ 584 585/* Set TDEFL_LESS_MEMORY to 1 to use less memory (compression will be slightly slower, and raw/dynamic blocks will be output more frequently). */ 586#define TDEFL_LESS_MEMORY 0 587 588/* tdefl_init() compression flags logically OR'd together (low 12 bits contain the max. number of probes per dictionary search): */ 589/* 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). */ 590enum 591{ 592 TDEFL_HUFFMAN_ONLY = 0, 593 TDEFL_DEFAULT_MAX_PROBES = 128, 594 TDEFL_MAX_PROBES_MASK = 0xFFF 595}; 596 597/* 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. */ 598/* TDEFL_COMPUTE_ADLER32: Always compute the adler-32 of the input data (even when not writing zlib headers). */ 599/* TDEFL_GREEDY_PARSING_FLAG: Set to use faster greedy parsing, instead of more efficient lazy parsing. */ 600/* 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). */ 601/* TDEFL_RLE_MATCHES: Only look for RLE matches (matches with a distance of 1) */ 602/* TDEFL_FILTER_MATCHES: Discards matches <= 5 chars if enabled. */ 603/* TDEFL_FORCE_ALL_STATIC_BLOCKS: Disable usage of optimized Huffman tables. */ 604/* TDEFL_FORCE_ALL_RAW_BLOCKS: Only use raw (uncompressed) deflate blocks. */ 605/* The low 12 bits are reserved to control the max # of hash probes per dictionary lookup (see TDEFL_MAX_PROBES_MASK). */ 606enum 607{ 608 TDEFL_WRITE_ZLIB_HEADER = 0x01000, 609 TDEFL_COMPUTE_ADLER32 = 0x02000, 610 TDEFL_GREEDY_PARSING_FLAG = 0x04000, 611 TDEFL_NONDETERMINISTIC_PARSING_FLAG = 0x08000, 612 TDEFL_RLE_MATCHES = 0x10000, 613 TDEFL_FILTER_MATCHES = 0x20000, 614 TDEFL_FORCE_ALL_STATIC_BLOCKS = 0x40000, 615 TDEFL_FORCE_ALL_RAW_BLOCKS = 0x80000 616}; 617 618/* High level compression functions: */ 619/* tdefl_compress_mem_to_heap() compresses a block in memory to a heap block allocated via malloc(). */ 620/* On entry: */ 621/* pSrc_buf, src_buf_len: Pointer and size of source block to compress. */ 622/* flags: The max match finder probes (default is 128) logically OR'd against the above flags. Higher probes are slower but improve compression. */ 623/* On return: */ 624/* Function returns a pointer to the compressed data, or NULL on failure. */ 625/* *pOut_len will be set to the compressed data's size, which could be larger than src_buf_len on uncompressible data. */ 626/* The caller must free() the returned block when it's no longer needed. */ 627MINIZ_EXPORT void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags); 628 629/* tdefl_compress_mem_to_mem() compresses a block in memory to another block in memory. */ 630/* Returns 0 on failure. */ 631MINIZ_EXPORT 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); 632 633/* Compresses an image to a compressed PNG file in memory. */ 634/* On entry: */ 635/* pImage, w, h, and num_chans describe the image to compress. num_chans may be 1, 2, 3, or 4. */ 636/* The image pitch in bytes per scanline will be w*num_chans. The leftmost pixel on the top scanline is stored first in memory. */ 637/* 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 */ 638/* If flip is true, the image will be flipped on the Y axis (useful for OpenGL apps). */ 639/* On return: */ 640/* Function returns a pointer to the compressed data, or NULL on failure. */ 641/* *pLen_out will be set to the size of the PNG image file. */ 642/* The caller must mz_free() the returned heap block (which will typically be larger than *pLen_out) when it's no longer needed. */ 643MINIZ_EXPORT 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); 644MINIZ_EXPORT void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out); 645 646/* Output stream interface. The compressor uses this interface to write compressed data. It'll typically be called TDEFL_OUT_BUF_SIZE at a time. */ 647typedef mz_bool (*tdefl_put_buf_func_ptr)(const void *pBuf, int len, void *pUser); 648 649/* tdefl_compress_mem_to_output() compresses a block to an output stream. The above helpers use this function internally. */ 650MINIZ_EXPORT 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); 651 652enum 653{ 654 TDEFL_MAX_HUFF_TABLES = 3, 655 TDEFL_MAX_HUFF_SYMBOLS_0 = 288, 656 TDEFL_MAX_HUFF_SYMBOLS_1 = 32, 657 TDEFL_MAX_HUFF_SYMBOLS_2 = 19, 658 TDEFL_LZ_DICT_SIZE = 32768, 659 TDEFL_LZ_DICT_SIZE_MASK = TDEFL_LZ_DICT_SIZE - 1, 660 TDEFL_MIN_MATCH_LEN = 3, 661 TDEFL_MAX_MATCH_LEN = 258 662}; 663 664/* TDEFL_OUT_BUF_SIZE MUST be large enough to hold a single entire compressed output block (using static/fixed Huffman codes). */ 665#if TDEFL_LESS_MEMORY 666enum 667{ 668 TDEFL_LZ_CODE_BUF_SIZE = 24 * 1024, 669 TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10, 670 TDEFL_MAX_HUFF_SYMBOLS = 288, 671 TDEFL_LZ_HASH_BITS = 12, 672 TDEFL_LEVEL1_HASH_SIZE_MASK = 4095, 673 TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3, 674 TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS 675}; 676#else 677enum 678{ 679 TDEFL_LZ_CODE_BUF_SIZE = 64 * 1024, 680 TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10, 681 TDEFL_MAX_HUFF_SYMBOLS = 288, 682 TDEFL_LZ_HASH_BITS = 15, 683 TDEFL_LEVEL1_HASH_SIZE_MASK = 4095, 684 TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3, 685 TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS 686}; 687#endif 688 689/* 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. */ 690typedef enum { 691 TDEFL_STATUS_BAD_PARAM = -2, 692 TDEFL_STATUS_PUT_BUF_FAILED = -1, 693 TDEFL_STATUS_OKAY = 0, 694 TDEFL_STATUS_DONE = 1 695} tdefl_status; 696 697/* Must map to MZ_NO_FLUSH, MZ_SYNC_FLUSH, etc. enums */ 698typedef enum { 699 TDEFL_NO_FLUSH = 0, 700 TDEFL_SYNC_FLUSH = 2, 701 TDEFL_FULL_FLUSH = 3, 702 TDEFL_FINISH = 4 703} tdefl_flush; 704 705/* tdefl's compression state structure. */ 706typedef struct 707{ 708 tdefl_put_buf_func_ptr m_pPut_buf_func; 709 void *m_pPut_buf_user; 710 mz_uint m_flags, m_max_probes[2]; 711 int m_greedy_parsing; 712 mz_uint m_adler32, m_lookahead_pos, m_lookahead_size, m_dict_size; 713 mz_uint8 *m_pLZ_code_buf, *m_pLZ_flags, *m_pOutput_buf, *m_pOutput_buf_end; 714 mz_uint m_num_flags_left, m_total_lz_bytes, m_lz_code_buf_dict_pos, m_bits_in, m_bit_buffer; 715 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; 716 tdefl_status m_prev_return_status; 717 const void *m_pIn_buf; 718 void *m_pOut_buf; 719 size_t *m_pIn_buf_size, *m_pOut_buf_size; 720 tdefl_flush m_flush; 721 const mz_uint8 *m_pSrc; 722 size_t m_src_buf_left, m_out_buf_ofs; 723 mz_uint8 m_dict[TDEFL_LZ_DICT_SIZE + TDEFL_MAX_MATCH_LEN - 1]; 724 mz_uint16 m_huff_count[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; 725 mz_uint16 m_huff_codes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; 726 mz_uint8 m_huff_code_sizes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; 727 mz_uint8 m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE]; 728 mz_uint16 m_next[TDEFL_LZ_DICT_SIZE]; 729 mz_uint16 m_hash[TDEFL_LZ_HASH_SIZE]; 730 mz_uint8 m_output_buf[TDEFL_OUT_BUF_SIZE]; 731} tdefl_compressor; 732 733/* Initializes the compressor. */ 734/* There is no corresponding deinit() function because the tdefl API's do not dynamically allocate memory. */ 735/* 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. */ 736/* If pBut_buf_func is NULL the user should always call the tdefl_compress() API. */ 737/* flags: See the above enums (TDEFL_HUFFMAN_ONLY, TDEFL_WRITE_ZLIB_HEADER, etc.) */ 738MINIZ_EXPORT tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags); 739 740/* 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. */ 741MINIZ_EXPORT 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); 742 743/* tdefl_compress_buffer() is only usable when the tdefl_init() is called with a non-NULL tdefl_put_buf_func_ptr. */ 744/* tdefl_compress_buffer() always consumes the entire input buffer. */ 745MINIZ_EXPORT tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, tdefl_flush flush); 746 747MINIZ_EXPORT tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d); 748MINIZ_EXPORT mz_uint32 tdefl_get_adler32(tdefl_compressor *d); 749 750/* Create tdefl_compress() flags given zlib-style compression parameters. */ 751/* level may range from [0,10] (where 10 is absolute max compression, but may be much slower on some files) */ 752/* window_bits may be -15 (raw deflate) or 15 (zlib) */ 753/* strategy may be either MZ_DEFAULT_STRATEGY, MZ_FILTERED, MZ_HUFFMAN_ONLY, MZ_RLE, or MZ_FIXED */ 754MINIZ_EXPORT mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy); 755 756#ifndef MINIZ_NO_MALLOC 757/* Allocate the tdefl_compressor structure in C so that */ 758/* non-C language bindings to tdefl_ API don't need to worry about */ 759/* structure size and allocation mechanism. */ 760MINIZ_EXPORT tdefl_compressor *tdefl_compressor_alloc(void); 761MINIZ_EXPORT void tdefl_compressor_free(tdefl_compressor *pComp); 762#endif 763 764#ifdef __cplusplus 765} 766#endif 767 #pragma once 768 769/* ------------------- Low-level Decompression API Definitions */ 770 771#ifdef __cplusplus 772extern "C" { 773#endif 774/* Decompression flags used by tinfl_decompress(). */ 775/* 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. */ 776/* 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. */ 777/* 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). */ 778/* TINFL_FLAG_COMPUTE_ADLER32: Force adler-32 checksum computation of the decompressed bytes. */ 779enum 780{ 781 TINFL_FLAG_PARSE_ZLIB_HEADER = 1, 782 TINFL_FLAG_HAS_MORE_INPUT = 2, 783 TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF = 4, 784 TINFL_FLAG_COMPUTE_ADLER32 = 8 785}; 786 787/* High level decompression functions: */ 788/* tinfl_decompress_mem_to_heap() decompresses a block in memory to a heap block allocated via malloc(). */ 789/* On entry: */ 790/* pSrc_buf, src_buf_len: Pointer and size of the Deflate or zlib source data to decompress. */ 791/* On return: */ 792/* Function returns a pointer to the decompressed data, or NULL on failure. */ 793/* *pOut_len will be set to the decompressed data's size, which could be larger than src_buf_len on uncompressible data. */ 794/* The caller must call mz_free() on the returned block when it's no longer needed. */ 795MINIZ_EXPORT void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags); 796 797/* tinfl_decompress_mem_to_mem() decompresses a block in memory to another block in memory. */ 798/* Returns TINFL_DECOMPRESS_MEM_TO_MEM_FAILED on failure, or the number of bytes written on success. */ 799#define TINFL_DECOMPRESS_MEM_TO_MEM_FAILED ((size_t)(-1)) 800MINIZ_EXPORT 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); 801 802/* 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. */ 803/* Returns 1 on success or 0 on failure. */ 804typedef int (*tinfl_put_buf_func_ptr)(const void *pBuf, int len, void *pUser); 805MINIZ_EXPORT 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); 806 807struct tinfl_decompressor_tag; 808typedef struct tinfl_decompressor_tag tinfl_decompressor; 809 810#ifndef MINIZ_NO_MALLOC 811/* Allocate the tinfl_decompressor structure in C so that */ 812/* non-C language bindings to tinfl_ API don't need to worry about */ 813/* structure size and allocation mechanism. */ 814MINIZ_EXPORT tinfl_decompressor *tinfl_decompressor_alloc(void); 815MINIZ_EXPORT void tinfl_decompressor_free(tinfl_decompressor *pDecomp); 816#endif 817 818/* Max size of LZ dictionary. */ 819#define TINFL_LZ_DICT_SIZE 32768 820 821/* Return status. */ 822typedef enum { 823 /* This flags indicates the inflator needs 1 or more input bytes to make forward progress, but the caller is indicating that no more are available. The compressed data */ 824 /* is probably corrupted. If you call the inflator again with more bytes it'll try to continue processing the input but this is a BAD sign (either the data is corrupted or you called it incorrectly). */ 825 /* If you call it again with no input you'll just get TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS again. */ 826 TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS = -4, 827 828 /* This flag indicates that one or more of the input parameters was obviously bogus. (You can try calling it again, but if you get this error the calling code is wrong.) */ 829 TINFL_STATUS_BAD_PARAM = -3, 830 831 /* This flags indicate the inflator is finished but the adler32 check of the uncompressed data didn't match. If you call it again it'll return TINFL_STATUS_DONE. */ 832 TINFL_STATUS_ADLER32_MISMATCH = -2, 833 834 /* This flags indicate the inflator has somehow failed (bad code, corrupted input, etc.). If you call it again without resetting via tinfl_init() it it'll just keep on returning the same status failure code. */ 835 TINFL_STATUS_FAILED = -1, 836 837 /* Any status code less than TINFL_STATUS_DONE must indicate a failure. */ 838 839 /* This flag indicates the inflator has returned every byte of uncompressed data that it can, has consumed every byte that it needed, has successfully reached the end of the deflate stream, and */ 840 /* if zlib headers and adler32 checking enabled that it has successfully checked the uncompressed data's adler32. If you call it again you'll just get TINFL_STATUS_DONE over and over again. */ 841 TINFL_STATUS_DONE = 0, 842 843 /* This flag indicates the inflator MUST have more input data (even 1 byte) before it can make any more forward progress, or you need to clear the TINFL_FLAG_HAS_MORE_INPUT */ 844 /* flag on the next call if you don't have any more source data. If the source data was somehow corrupted it's also possible (but unlikely) for the inflator to keep on demanding input to */ 845 /* proceed, so be sure to properly set the TINFL_FLAG_HAS_MORE_INPUT flag. */ 846 TINFL_STATUS_NEEDS_MORE_INPUT = 1, 847 848 /* This flag indicates the inflator definitely has 1 or more bytes of uncompressed data available, but it cannot write this data into the output buffer. */ 849 /* Note if the source compressed data was corrupted it's possible for the inflator to return a lot of uncompressed data to the caller. I've been assuming you know how much uncompressed data to expect */ 850 /* (either exact or worst case) and will stop calling the inflator and fail after receiving too much. In pure streaming scenarios where you have no idea how many bytes to expect this may not be possible */ 851 /* so I may need to add some code to address this. */ 852 TINFL_STATUS_HAS_MORE_OUTPUT = 2 853} tinfl_status; 854 855/* Initializes the decompressor to its initial state. */ 856#define tinfl_init(r) \ 857 do \ 858 { \ 859 (r)->m_state = 0; \ 860 } \ 861 MZ_MACRO_END 862#define tinfl_get_adler32(r) (r)->m_check_adler32 863 864/* 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. */ 865/* 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. */ 866MINIZ_EXPORT 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); 867 868/* Internal/private bits follow. */ 869enum 870{ 871 TINFL_MAX_HUFF_TABLES = 3, 872 TINFL_MAX_HUFF_SYMBOLS_0 = 288, 873 TINFL_MAX_HUFF_SYMBOLS_1 = 32, 874 TINFL_MAX_HUFF_SYMBOLS_2 = 19, 875 TINFL_FAST_LOOKUP_BITS = 10, 876 TINFL_FAST_LOOKUP_SIZE = 1 << TINFL_FAST_LOOKUP_BITS 877}; 878 879typedef struct 880{ 881 mz_uint8 m_code_size[TINFL_MAX_HUFF_SYMBOLS_0]; 882 mz_int16 m_look_up[TINFL_FAST_LOOKUP_SIZE], m_tree[TINFL_MAX_HUFF_SYMBOLS_0 * 2]; 883} tinfl_huff_table; 884 885#if MINIZ_HAS_64BIT_REGISTERS 886#define TINFL_USE_64BIT_BITBUF 1 887#else 888#define TINFL_USE_64BIT_BITBUF 0 889#endif 890 891#if TINFL_USE_64BIT_BITBUF 892typedef mz_uint64 tinfl_bit_buf_t; 893#define TINFL_BITBUF_SIZE (64) 894#else 895typedef mz_uint32 tinfl_bit_buf_t; 896#define TINFL_BITBUF_SIZE (32) 897#endif 898 899struct tinfl_decompressor_tag 900{ 901 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]; 902 tinfl_bit_buf_t m_bit_buf; 903 size_t m_dist_from_out_buf_start; 904 tinfl_huff_table m_tables[TINFL_MAX_HUFF_TABLES]; 905 mz_uint8 m_raw_header[4], m_len_codes[TINFL_MAX_HUFF_SYMBOLS_0 + TINFL_MAX_HUFF_SYMBOLS_1 + 137]; 906}; 907 908#ifdef __cplusplus 909} 910#endif 911 912#pragma once 913 914 915/* ------------------- ZIP archive reading/writing */ 916 917#ifndef MINIZ_NO_ARCHIVE_APIS 918 919#ifdef __cplusplus 920extern "C" { 921#endif 922 923enum 924{ 925 /* Note: These enums can be reduced as needed to save memory or stack space - they are pretty conservative. */ 926 MZ_ZIP_MAX_IO_BUF_SIZE = 64 * 1024, 927 MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 512, 928 MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 512 929}; 930 931typedef struct 932{ 933 /* Central directory file index. */ 934 mz_uint32 m_file_index; 935 936 /* Byte offset of this entry in the archive's central directory. Note we currently only support up to UINT_MAX or less bytes in the central dir. */ 937 mz_uint64 m_central_dir_ofs; 938 939 /* These fields are copied directly from the zip's central dir. */ 940 mz_uint16 m_version_made_by; 941 mz_uint16 m_version_needed; 942 mz_uint16 m_bit_flag; 943 mz_uint16 m_method; 944 945#ifndef MINIZ_NO_TIME 946 MZ_TIME_T m_time; 947#endif 948 949 /* CRC-32 of uncompressed data. */ 950 mz_uint32 m_crc32; 951 952 /* File's compressed size. */ 953 mz_uint64 m_comp_size; 954 955 /* File's uncompressed size. Note, I've seen some old archives where directory entries had 512 bytes for their uncompressed sizes, but when you try to unpack them you actually get 0 bytes. */ 956 mz_uint64 m_uncomp_size; 957 958 /* Zip internal and external file attributes. */ 959 mz_uint16 m_internal_attr; 960 mz_uint32 m_external_attr; 961 962 /* Entry's local header file offset in bytes. */ 963 mz_uint64 m_local_header_ofs; 964 965 /* Size of comment in bytes. */ 966 mz_uint32 m_comment_size; 967 968 /* MZ_TRUE if the entry appears to be a directory. */ 969 mz_bool m_is_directory; 970 971 /* MZ_TRUE if the entry uses encryption/strong encryption (which miniz_zip doesn't support) */ 972 mz_bool m_is_encrypted; 973 974 /* MZ_TRUE if the file is not encrypted, a patch file, and if it uses a compression method we support. */ 975 mz_bool m_is_supported; 976 977 /* Filename. If string ends in '/' it's a subdirectory entry. */ 978 /* Guaranteed to be zero terminated, may be truncated to fit. */ 979 char m_filename[MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE]; 980 981 /* Comment field. */ 982 /* Guaranteed to be zero terminated, may be truncated to fit. */ 983 char m_comment[MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE]; 984 985} mz_zip_archive_file_stat; 986 987typedef size_t (*mz_file_read_func)(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n); 988typedef size_t (*mz_file_write_func)(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n); 989typedef mz_bool (*mz_file_needs_keepalive)(void *pOpaque); 990 991struct mz_zip_internal_state_tag; 992typedef struct mz_zip_internal_state_tag mz_zip_internal_state; 993 994typedef enum { 995 MZ_ZIP_MODE_INVALID = 0, 996 MZ_ZIP_MODE_READING = 1, 997 MZ_ZIP_MODE_WRITING = 2, 998 MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3 999} mz_zip_mode; 1000 1001typedef enum { 1002 MZ_ZIP_FLAG_CASE_SENSITIVE = 0x0100, 1003 MZ_ZIP_FLAG_IGNORE_PATH = 0x0200, 1004 MZ_ZIP_FLAG_COMPRESSED_DATA = 0x0400, 1005 MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY = 0x0800, 1006 MZ_ZIP_FLAG_VALIDATE_LOCATE_FILE_FLAG = 0x1000, /* if enabled, mz_zip_reader_locate_file() will be called on each file as its validated to ensure the func finds the file in the central dir (intended for testing) */ 1007 MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY = 0x2000, /* validate the local headers, but don't decompress the entire file and check the crc32 */ 1008 MZ_ZIP_FLAG_WRITE_ZIP64 = 0x4000, /* always use the zip64 file format, instead of the original zip file format with automatic switch to zip64. Use as flags parameter with mz_zip_writer_init*_v2 */ 1009 MZ_ZIP_FLAG_WRITE_ALLOW_READING = 0x8000, 1010 MZ_ZIP_FLAG_ASCII_FILENAME = 0x10000, 1011 /*After adding a compressed file, seek back 1012 to local file header and set the correct sizes*/ 1013 MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE = 0x20000 1014} mz_zip_flags; 1015 1016typedef enum { 1017 MZ_ZIP_TYPE_INVALID = 0, 1018 MZ_ZIP_TYPE_USER, 1019 MZ_ZIP_TYPE_MEMORY, 1020 MZ_ZIP_TYPE_HEAP, 1021 MZ_ZIP_TYPE_FILE, 1022 MZ_ZIP_TYPE_CFILE, 1023 MZ_ZIP_TOTAL_TYPES 1024} mz_zip_type; 1025 1026/* miniz error codes. Be sure to update mz_zip_get_error_string() if you add or modify this enum. */ 1027typedef enum { 1028 MZ_ZIP_NO_ERROR = 0, 1029 MZ_ZIP_UNDEFINED_ERROR, 1030 MZ_ZIP_TOO_MANY_FILES, 1031 MZ_ZIP_FILE_TOO_LARGE, 1032 MZ_ZIP_UNSUPPORTED_METHOD, 1033 MZ_ZIP_UNSUPPORTED_ENCRYPTION, 1034 MZ_ZIP_UNSUPPORTED_FEATURE, 1035 MZ_ZIP_FAILED_FINDING_CENTRAL_DIR, 1036 MZ_ZIP_NOT_AN_ARCHIVE, 1037 MZ_ZIP_INVALID_HEADER_OR_CORRUPTED, 1038 MZ_ZIP_UNSUPPORTED_MULTIDISK, 1039 MZ_ZIP_DECOMPRESSION_FAILED, 1040 MZ_ZIP_COMPRESSION_FAILED, 1041 MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE, 1042 MZ_ZIP_CRC_CHECK_FAILED, 1043 MZ_ZIP_UNSUPPORTED_CDIR_SIZE, 1044 MZ_ZIP_ALLOC_FAILED, 1045 MZ_ZIP_FILE_OPEN_FAILED, 1046 MZ_ZIP_FILE_CREATE_FAILED, 1047 MZ_ZIP_FILE_WRITE_FAILED, 1048 MZ_ZIP_FILE_READ_FAILED, 1049 MZ_ZIP_FILE_CLOSE_FAILED, 1050 MZ_ZIP_FILE_SEEK_FAILED, 1051 MZ_ZIP_FILE_STAT_FAILED, 1052 MZ_ZIP_INVALID_PARAMETER, 1053 MZ_ZIP_INVALID_FILENAME, 1054 MZ_ZIP_BUF_TOO_SMALL, 1055 MZ_ZIP_INTERNAL_ERROR, 1056 MZ_ZIP_FILE_NOT_FOUND, 1057 MZ_ZIP_ARCHIVE_TOO_LARGE, 1058 MZ_ZIP_VALIDATION_FAILED, 1059 MZ_ZIP_WRITE_CALLBACK_FAILED, 1060 MZ_ZIP_TOTAL_ERRORS 1061} mz_zip_error; 1062 1063typedef struct 1064{ 1065 mz_uint64 m_archive_size; 1066 mz_uint64 m_central_directory_file_ofs; 1067 1068 /* We only support up to UINT32_MAX files in zip64 mode. */ 1069 mz_uint32 m_total_files; 1070 mz_zip_mode m_zip_mode; 1071 mz_zip_type m_zip_type; 1072 mz_zip_error m_last_error; 1073 1074 mz_uint64 m_file_offset_alignment; 1075 1076 mz_alloc_func m_pAlloc; 1077 mz_free_func m_pFree; 1078 mz_realloc_func m_pRealloc; 1079 void *m_pAlloc_opaque; 1080 1081 mz_file_read_func m_pRead; 1082 mz_file_write_func m_pWrite; 1083 mz_file_needs_keepalive m_pNeeds_keepalive; 1084 void *m_pIO_opaque; 1085 1086 mz_zip_internal_state *m_pState; 1087 1088} mz_zip_archive; 1089 1090typedef struct 1091{ 1092 mz_zip_archive *pZip; 1093 mz_uint flags; 1094 1095 int status; 1096#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS 1097 mz_uint file_crc32; 1098#endif 1099 mz_uint64 read_buf_size, read_buf_ofs, read_buf_avail, comp_remaining, out_buf_ofs, cur_file_ofs; 1100 mz_zip_archive_file_stat file_stat; 1101 void *pRead_buf; 1102 void *pWrite_buf; 1103 1104 size_t out_blk_remain; 1105 1106 tinfl_decompressor inflator; 1107 1108} mz_zip_reader_extract_iter_state; 1109 1110/* -------- ZIP reading */ 1111 1112/* Inits a ZIP archive reader. */ 1113/* These functions read and validate the archive's central directory. */ 1114MINIZ_EXPORT mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, mz_uint flags); 1115 1116MINIZ_EXPORT mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, size_t size, mz_uint flags); 1117 1118#ifndef MINIZ_NO_STDIO 1119/* Read a archive from a disk file. */ 1120/* file_start_ofs is the file offset where the archive actually begins, or 0. */ 1121/* actual_archive_size is the true total size of the archive, which may be smaller than the file's actual size on disk. If zero the entire file is treated as the archive. */ 1122MINIZ_EXPORT mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint32 flags); 1123MINIZ_EXPORT mz_bool mz_zip_reader_init_file_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint flags, mz_uint64 file_start_ofs, mz_uint64 archive_size); 1124 1125/* Read an archive from an already opened FILE, beginning at the current file position. */ 1126/* The archive is assumed to be archive_size bytes long. If archive_size is 0, then the entire rest of the file is assumed to contain the archive. */ 1127/* The FILE will NOT be closed when mz_zip_reader_end() is called. */ 1128MINIZ_EXPORT mz_bool mz_zip_reader_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint64 archive_size, mz_uint flags); 1129#endif 1130 1131/* Ends archive reading, freeing all allocations, and closing the input archive file if mz_zip_reader_init_file() was used. */ 1132MINIZ_EXPORT mz_bool mz_zip_reader_end(mz_zip_archive *pZip); 1133 1134/* -------- ZIP reading or writing */ 1135 1136/* Clears a mz_zip_archive struct to all zeros. */ 1137/* Important: This must be done before passing the struct to any mz_zip functions. */ 1138MINIZ_EXPORT void mz_zip_zero_struct(mz_zip_archive *pZip); 1139 1140MINIZ_EXPORT mz_zip_mode mz_zip_get_mode(mz_zip_archive *pZip); 1141MINIZ_EXPORT mz_zip_type mz_zip_get_type(mz_zip_archive *pZip); 1142 1143/* Returns the total number of files in the archive. */ 1144MINIZ_EXPORT mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip); 1145 1146MINIZ_EXPORT mz_uint64 mz_zip_get_archive_size(mz_zip_archive *pZip); 1147MINIZ_EXPORT mz_uint64 mz_zip_get_archive_file_start_offset(mz_zip_archive *pZip); 1148MINIZ_EXPORT MZ_FILE *mz_zip_get_cfile(mz_zip_archive *pZip); 1149 1150/* Reads n bytes of raw archive data, starting at file offset file_ofs, to pBuf. */ 1151MINIZ_EXPORT size_t mz_zip_read_archive_data(mz_zip_archive *pZip, mz_uint64 file_ofs, void *pBuf, size_t n); 1152 1153/* All mz_zip funcs set the m_last_error field in the mz_zip_archive struct. These functions retrieve/manipulate this field. */ 1154/* Note that the m_last_error functionality is not thread safe. */ 1155MINIZ_EXPORT mz_zip_error mz_zip_set_last_error(mz_zip_archive *pZip, mz_zip_error err_num); 1156MINIZ_EXPORT mz_zip_error mz_zip_peek_last_error(mz_zip_archive *pZip); 1157MINIZ_EXPORT mz_zip_error mz_zip_clear_last_error(mz_zip_archive *pZip); 1158MINIZ_EXPORT mz_zip_error mz_zip_get_last_error(mz_zip_archive *pZip); 1159MINIZ_EXPORT const char *mz_zip_get_error_string(mz_zip_error mz_err); 1160 1161/* MZ_TRUE if the archive file entry is a directory entry. */ 1162MINIZ_EXPORT mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, mz_uint file_index); 1163 1164/* MZ_TRUE if the file is encrypted/strong encrypted. */ 1165MINIZ_EXPORT mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, mz_uint file_index); 1166 1167/* MZ_TRUE if the compression method is supported, and the file is not encrypted, and the file is not a compressed patch file. */ 1168MINIZ_EXPORT mz_bool mz_zip_reader_is_file_supported(mz_zip_archive *pZip, mz_uint file_index); 1169 1170/* Retrieves the filename of an archive file entry. */ 1171/* 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. */ 1172MINIZ_EXPORT mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, char *pFilename, mz_uint filename_buf_size); 1173 1174/* Attempts to locates a file in the archive's central directory. */ 1175/* Valid flags: MZ_ZIP_FLAG_CASE_SENSITIVE, MZ_ZIP_FLAG_IGNORE_PATH */ 1176/* Returns -1 if the file cannot be found. */ 1177MINIZ_EXPORT int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags); 1178MINIZ_EXPORT mz_bool mz_zip_reader_locate_file_v2(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags, mz_uint32 *file_index); 1179 1180/* Returns detailed information about an archive file entry. */ 1181MINIZ_EXPORT mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, mz_zip_archive_file_stat *pStat); 1182 1183/* MZ_TRUE if the file is in zip64 format. */ 1184/* A file is considered zip64 if it contained a zip64 end of central directory marker, or if it contained any zip64 extended file information fields in the central directory. */ 1185MINIZ_EXPORT mz_bool mz_zip_is_zip64(mz_zip_archive *pZip); 1186 1187/* Returns the total central directory size in bytes. */ 1188/* The current max supported size is <= MZ_UINT32_MAX. */ 1189MINIZ_EXPORT size_t mz_zip_get_central_dir_size(mz_zip_archive *pZip); 1190 1191/* Extracts a archive file to a memory buffer using no memory allocation. */ 1192/* There must be at least enough room on the stack to store the inflator's state (~34KB or so). */ 1193MINIZ_EXPORT 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); 1194MINIZ_EXPORT 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); 1195 1196/* Extracts a archive file to a memory buffer. */ 1197MINIZ_EXPORT 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); 1198MINIZ_EXPORT 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); 1199 1200/* Extracts a archive file to a dynamically allocated heap buffer. */ 1201/* The memory will be allocated via the mz_zip_archive's alloc/realloc functions. */ 1202/* Returns NULL and sets the last error on failure. */ 1203MINIZ_EXPORT void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, size_t *pSize, mz_uint flags); 1204MINIZ_EXPORT void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, const char *pFilename, size_t *pSize, mz_uint flags); 1205 1206/* Extracts a archive file using a callback function to output the file's data. */ 1207MINIZ_EXPORT 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); 1208MINIZ_EXPORT 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); 1209 1210/* Extract a file iteratively */ 1211MINIZ_EXPORT mz_zip_reader_extract_iter_state* mz_zip_reader_extract_iter_new(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags); 1212MINIZ_EXPORT mz_zip_reader_extract_iter_state* mz_zip_reader_extract_file_iter_new(mz_zip_archive *pZip, const char *pFilename, mz_uint flags); 1213MINIZ_EXPORT size_t mz_zip_reader_extract_iter_read(mz_zip_reader_extract_iter_state* pState, void* pvBuf, size_t buf_size); 1214MINIZ_EXPORT mz_bool mz_zip_reader_extract_iter_free(mz_zip_reader_extract_iter_state* pState); 1215 1216#ifndef MINIZ_NO_STDIO 1217/* Extracts a archive file to a disk file and sets its last accessed and modified times. */ 1218/* This function only extracts files, not archive directory records. */ 1219MINIZ_EXPORT mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, const char *pDst_filename, mz_uint flags); 1220MINIZ_EXPORT mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, mz_uint flags); 1221 1222/* Extracts a archive file starting at the current position in the destination FILE stream. */ 1223MINIZ_EXPORT mz_bool mz_zip_reader_extract_to_cfile(mz_zip_archive *pZip, mz_uint file_index, MZ_FILE *File, mz_uint flags); 1224MINIZ_EXPORT mz_bool mz_zip_reader_extract_file_to_cfile(mz_zip_archive *pZip, const char *pArchive_filename, MZ_FILE *pFile, mz_uint flags); 1225#endif 1226 1227#if 0 1228/* TODO */ 1229 typedef void *mz_zip_streaming_extract_state_ptr; 1230 mz_zip_streaming_extract_state_ptr mz_zip_streaming_extract_begin(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags); 1231 uint64_t mz_zip_streaming_extract_get_size(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState); 1232 uint64_t mz_zip_streaming_extract_get_cur_ofs(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState); 1233 mz_bool mz_zip_streaming_extract_seek(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState, uint64_t new_ofs); 1234 size_t mz_zip_streaming_extract_read(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState, void *pBuf, size_t buf_size); 1235 mz_bool mz_zip_streaming_extract_end(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState); 1236#endif 1237 1238/* This function compares the archive's local headers, the optional local zip64 extended information block, and the optional descriptor following the compressed data vs. the data in the central directory. */ 1239/* It also validates that each file can be successfully uncompressed unless the MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY is specified. */ 1240MINIZ_EXPORT mz_bool mz_zip_validate_file(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags); 1241 1242/* Validates an entire archive by calling mz_zip_validate_file() on each file. */ 1243MINIZ_EXPORT mz_bool mz_zip_validate_archive(mz_zip_archive *pZip, mz_uint flags); 1244 1245/* Misc utils/helpers, valid for ZIP reading or writing */ 1246MINIZ_EXPORT mz_bool mz_zip_validate_mem_archive(const void *pMem, size_t size, mz_uint flags, mz_zip_error *pErr); 1247MINIZ_EXPORT mz_bool mz_zip_validate_file_archive(const char *pFilename, mz_uint flags, mz_zip_error *pErr); 1248 1249/* Universal end function - calls either mz_zip_reader_end() or mz_zip_writer_end(). */ 1250MINIZ_EXPORT mz_bool mz_zip_end(mz_zip_archive *pZip); 1251 1252/* -------- ZIP writing */ 1253 1254#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS 1255 1256/* Inits a ZIP archive writer. */ 1257/*Set pZip->m_pWrite (and pZip->m_pIO_opaque) before calling mz_zip_writer_init or mz_zip_writer_init_v2*/ 1258/*The output is streamable, i.e. file_ofs in mz_file_write_func always increases only by n*/ 1259MINIZ_EXPORT mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size); 1260MINIZ_EXPORT mz_bool mz_zip_writer_init_v2(mz_zip_archive *pZip, mz_uint64 existing_size, mz_uint flags); 1261 1262MINIZ_EXPORT mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size); 1263MINIZ_EXPORT mz_bool mz_zip_writer_init_heap_v2(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size, mz_uint flags); 1264 1265#ifndef MINIZ_NO_STDIO 1266MINIZ_EXPORT mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning); 1267MINIZ_EXPORT mz_bool mz_zip_writer_init_file_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning, mz_uint flags); 1268MINIZ_EXPORT mz_bool mz_zip_writer_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint flags); 1269#endif 1270 1271/* Converts a ZIP archive reader object into a writer object, to allow efficient in-place file appends to occur on an existing archive. */ 1272/* 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. */ 1273/* 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). */ 1274/* Finally, for archives opened using mz_zip_reader_init, the mz_zip_archive's user provided m_pWrite function cannot be NULL. */ 1275/* Note: In-place archive modification is not recommended unless you know what you're doing, because if execution stops or something goes wrong before */ 1276/* the archive is finalized the file's central directory will be hosed. */ 1277MINIZ_EXPORT mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, const char *pFilename); 1278MINIZ_EXPORT mz_bool mz_zip_writer_init_from_reader_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint flags); 1279 1280/* Adds the contents of a memory buffer to an archive. These functions record the current local time into the archive. */ 1281/* To add a directory entry, call this method with an archive name ending in a forwardslash with an empty buffer. */ 1282/* 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. */ 1283MINIZ_EXPORT 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); 1284 1285/* Like mz_zip_writer_add_mem(), except you can specify a file comment field, and optionally supply the function with already compressed data. */ 1286/* uncomp_size/uncomp_crc32 are only used if the MZ_ZIP_FLAG_COMPRESSED_DATA flag is specified. */ 1287MINIZ_EXPORT 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, 1288 mz_uint64 uncomp_size, mz_uint32 uncomp_crc32); 1289 1290MINIZ_EXPORT mz_bool mz_zip_writer_add_mem_ex_v2(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, 1291 mz_uint64 uncomp_size, mz_uint32 uncomp_crc32, MZ_TIME_T *last_modified, const char *user_extra_data_local, mz_uint user_extra_data_local_len, 1292 const char *user_extra_data_central, mz_uint user_extra_data_central_len); 1293 1294/* Adds the contents of a file to an archive. This function also records the disk file's modified time into the archive. */ 1295/* File data is supplied via a read callback function. User mz_zip_writer_add_(c)file to add a file directly.*/ 1296MINIZ_EXPORT mz_bool mz_zip_writer_add_read_buf_callback(mz_zip_archive *pZip, const char *pArchive_name, mz_file_read_func read_callback, void* callback_opaque, mz_uint64 max_size, 1297 const MZ_TIME_T *pFile_time, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, const char *user_extra_data_local, mz_uint user_extra_data_local_len, 1298 const char *user_extra_data_central, mz_uint user_extra_data_central_len); 1299 1300 1301#ifndef MINIZ_NO_STDIO 1302/* Adds the contents of a disk file to an archive. This function also records the disk file's modified time into the archive. */ 1303/* 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. */ 1304MINIZ_EXPORT 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); 1305 1306/* Like mz_zip_writer_add_file(), except the file data is read from the specified FILE stream. */ 1307MINIZ_EXPORT mz_bool mz_zip_writer_add_cfile(mz_zip_archive *pZip, const char *pArchive_name, MZ_FILE *pSrc_file, mz_uint64 max_size, 1308 const MZ_TIME_T *pFile_time, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, const char *user_extra_data_local, mz_uint user_extra_data_local_len, 1309 const char *user_extra_data_central, mz_uint user_extra_data_central_len); 1310#endif 1311 1312/* Adds a file to an archive by fully cloning the data from another archive. */ 1313/* This function fully clones the source file's compressed data (no recompression), along with its full filename, extra data (it may add or modify the zip64 local header extra data field), and the optional descriptor following the compressed data. */ 1314MINIZ_EXPORT mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *pSource_zip, mz_uint src_file_index); 1315 1316/* Finalizes the archive by writing the central directory records followed by the end of central directory record. */ 1317/* After an archive is finalized, the only valid call on the mz_zip_archive struct is mz_zip_writer_end(). */ 1318/* An archive must be manually finalized by calling this function for it to be valid. */ 1319MINIZ_EXPORT mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip); 1320 1321/* Finalizes a heap archive, returning a poiner to the heap block and its size. */ 1322/* The heap block will be allocated using the mz_zip_archive's alloc/realloc callbacks. */ 1323MINIZ_EXPORT mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **ppBuf, size_t *pSize); 1324 1325/* Ends archive writing, freeing all allocations, and closing the output file if mz_zip_writer_init_file() was used. */ 1326/* Note for the archive to be valid, it *must* have been finalized before ending (this function will not do it for you). */ 1327MINIZ_EXPORT mz_bool mz_zip_writer_end(mz_zip_archive *pZip); 1328 1329/* -------- Misc. high-level helper functions: */ 1330 1331/* mz_zip_add_mem_to_archive_file_in_place() efficiently (but not atomically) appends a memory blob to a ZIP archive. */ 1332/* Note this is NOT a fully safe operation. If it crashes or dies in some way your archive can be left in a screwed up state (without a central directory). */ 1333/* 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. */ 1334/* TODO: Perhaps add an option to leave the existing central dir in place in case the add dies? We could then truncate the file (so the old central dir would be at the end) if something goes wrong. */ 1335MINIZ_EXPORT 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); 1336MINIZ_EXPORT mz_bool mz_zip_add_mem_to_archive_file_in_place_v2(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_zip_error *pErr); 1337 1338/* Reads a single file from an archive into a heap block. */ 1339/* If pComment is not NULL, only the file with the specified comment will be extracted. */ 1340/* Returns NULL on failure. */ 1341MINIZ_EXPORT void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint flags); 1342MINIZ_EXPORT void *mz_zip_extract_archive_file_to_heap_v2(const char *pZip_filename, const char *pArchive_name, const char *pComment, size_t *pSize, mz_uint flags, mz_zip_error *pErr); 1343 1344#endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS */ 1345 1346#ifdef __cplusplus 1347} 1348#endif 1349 1350#endif /* MINIZ_NO_ARCHIVE_APIS */