miniz.h 40 KB

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  1. #ifndef MINIZ_HEADER_INCLUDED
  2. #define MINIZ_HEADER_INCLUDED
  3. #include <stdlib.h>
  4. // Defines to completely disable specific portions of miniz.c:
  5. // If all macros here are defined the only functionality remaining will be CRC-32, adler-32, tinfl, and tdefl.
  6. // Define MINIZ_NO_STDIO to disable all usage and any functions which rely on stdio for file I/O.
  7. //#define MINIZ_NO_STDIO
  8. // If MINIZ_NO_TIME is specified then the ZIP archive functions will not be able to get the current time, or
  9. // get/set file times, and the C run-time funcs that get/set times won't be called.
  10. // The current downside is the times written to your archives will be from 1979.
  11. //#define MINIZ_NO_TIME
  12. // Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's.
  13. //#define MINIZ_NO_ARCHIVE_APIS
  14. // Define MINIZ_NO_ARCHIVE_APIS to disable all writing related ZIP archive API's.
  15. //#define MINIZ_NO_ARCHIVE_WRITING_APIS
  16. // Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style compression/decompression API's.
  17. //#define MINIZ_NO_ZLIB_APIS
  18. // Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to prevent conflicts against stock zlib.
  19. #define MINIZ_NO_ZLIB_COMPATIBLE_NAMES
  20. // Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and realloc.
  21. // Note if MINIZ_NO_MALLOC is defined then the user must always provide custom user alloc/free/realloc
  22. // callbacks to the zlib and archive API's, and a few stand-alone helper API's which don't provide custom user
  23. // functions (such as tdefl_compress_mem_to_heap() and tinfl_decompress_mem_to_heap()) won't work.
  24. //#define MINIZ_NO_MALLOC
  25. #if defined(__TINYC__) && (defined(__linux) || defined(__linux__))
  26. // TODO: Work around "error: include file 'sys\utime.h' when compiling with tcc on Linux
  27. #define MINIZ_NO_TIME
  28. #endif
  29. #if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS)
  30. #include <time.h>
  31. #endif
  32. #if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || defined(__i386) || defined(__i486__) || defined(__i486) || defined(i386) || defined(__ia64__) || defined(__x86_64__)
  33. // MINIZ_X86_OR_X64_CPU is only used to help set the below macros.
  34. #define MINIZ_X86_OR_X64_CPU 1
  35. #endif
  36. #if (__BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU
  37. // Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian.
  38. #define MINIZ_LITTLE_ENDIAN 1
  39. #endif
  40. #if MINIZ_X86_OR_X64_CPU
  41. // Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient integer loads and stores from unaligned addresses.
  42. #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1
  43. #endif
  44. #if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__) || defined(__ia64__) || defined(__x86_64__)
  45. // 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).
  46. #define MINIZ_HAS_64BIT_REGISTERS 1
  47. #endif
  48. #ifdef __cplusplus
  49. extern "C" {
  50. #endif
  51. // ------------------- zlib-style API Definitions.
  52. // 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!
  53. typedef unsigned long mz_ulong;
  54. // 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.
  55. void mz_free(void *p);
  56. #define MZ_ADLER32_INIT (1)
  57. // mz_adler32() returns the initial adler-32 value to use when called with ptr==NULL.
  58. mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len);
  59. #define MZ_CRC32_INIT (0)
  60. // mz_crc32() returns the initial CRC-32 value to use when called with ptr==NULL.
  61. mz_ulong mz_crc32(mz_ulong crc, const unsigned char *ptr, size_t buf_len);
  62. // Compression strategies.
  63. enum { MZ_DEFAULT_STRATEGY = 0, MZ_FILTERED = 1, MZ_HUFFMAN_ONLY = 2, MZ_RLE = 3, MZ_FIXED = 4 };
  64. // Method
  65. #define MZ_DEFLATED 8
  66. #ifndef MINIZ_NO_ZLIB_APIS
  67. // Heap allocation callbacks.
  68. // Note that mz_alloc_func parameter types purpsosely differ from zlib's: items/size is size_t, not unsigned long.
  69. typedef void *(*mz_alloc_func)(void *opaque, size_t items, size_t size);
  70. typedef void (*mz_free_func)(void *opaque, void *address);
  71. typedef void *(*mz_realloc_func)(void *opaque, void *address, size_t items, size_t size);
  72. #define MZ_VERSION "9.1.15"
  73. #define MZ_VERNUM 0x91F0
  74. #define MZ_VER_MAJOR 9
  75. #define MZ_VER_MINOR 1
  76. #define MZ_VER_REVISION 15
  77. #define MZ_VER_SUBREVISION 0
  78. // 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).
  79. enum { MZ_NO_FLUSH = 0, MZ_PARTIAL_FLUSH = 1, MZ_SYNC_FLUSH = 2, MZ_FULL_FLUSH = 3, MZ_FINISH = 4, MZ_BLOCK = 5 };
  80. // Return status codes. MZ_PARAM_ERROR is non-standard.
  81. 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 };
  82. // 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.
  83. 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 };
  84. // Window bits
  85. #define MZ_DEFAULT_WINDOW_BITS 15
  86. struct mz_internal_state;
  87. // Compression/decompression stream struct.
  88. typedef struct mz_stream_s
  89. {
  90. const unsigned char *next_in; // pointer to next byte to read
  91. unsigned int avail_in; // number of bytes available at next_in
  92. mz_ulong total_in; // total number of bytes consumed so far
  93. unsigned char *next_out; // pointer to next byte to write
  94. unsigned int avail_out; // number of bytes that can be written to next_out
  95. mz_ulong total_out; // total number of bytes produced so far
  96. char *msg; // error msg (unused)
  97. struct mz_internal_state *state; // internal state, allocated by zalloc/zfree
  98. mz_alloc_func zalloc; // optional heap allocation function (defaults to malloc)
  99. mz_free_func zfree; // optional heap free function (defaults to free)
  100. void *opaque; // heap alloc function user pointer
  101. int data_type; // data_type (unused)
  102. mz_ulong adler; // adler32 of the source or uncompressed data
  103. mz_ulong reserved; // not used
  104. } mz_stream;
  105. typedef mz_stream *mz_streamp;
  106. // Returns the version string of miniz.c.
  107. const char *mz_version(void);
  108. // mz_deflateInit() initializes a compressor with default options:
  109. // Parameters:
  110. // pStream must point to an initialized mz_stream struct.
  111. // level must be between [MZ_NO_COMPRESSION, MZ_BEST_COMPRESSION].
  112. // level 1 enables a specially optimized compression function that's been optimized purely for performance, not ratio.
  113. // (This special func. is currently only enabled when MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are defined.)
  114. // Return values:
  115. // MZ_OK on success.
  116. // MZ_STREAM_ERROR if the stream is bogus.
  117. // MZ_PARAM_ERROR if the input parameters are bogus.
  118. // MZ_MEM_ERROR on out of memory.
  119. int mz_deflateInit(mz_streamp pStream, int level);
  120. // mz_deflateInit2() is like mz_deflate(), except with more control:
  121. // Additional parameters:
  122. // method must be MZ_DEFLATED
  123. // 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)
  124. // mem_level must be between [1, 9] (it's checked but ignored by miniz.c)
  125. int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy);
  126. // Quickly resets a compressor without having to reallocate anything. Same as calling mz_deflateEnd() followed by mz_deflateInit()/mz_deflateInit2().
  127. int mz_deflateReset(mz_streamp pStream);
  128. // mz_deflate() compresses the input to output, consuming as much of the input and producing as much output as possible.
  129. // Parameters:
  130. // 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.
  131. // flush may be MZ_NO_FLUSH, MZ_PARTIAL_FLUSH/MZ_SYNC_FLUSH, MZ_FULL_FLUSH, or MZ_FINISH.
  132. // Return values:
  133. // 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).
  134. // 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.
  135. // MZ_STREAM_ERROR if the stream is bogus.
  136. // MZ_PARAM_ERROR if one of the parameters is invalid.
  137. // 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.)
  138. int mz_deflate(mz_streamp pStream, int flush);
  139. // mz_deflateEnd() deinitializes a compressor:
  140. // Return values:
  141. // MZ_OK on success.
  142. // MZ_STREAM_ERROR if the stream is bogus.
  143. int mz_deflateEnd(mz_streamp pStream);
  144. // 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.
  145. mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len);
  146. // Single-call compression functions mz_compress() and mz_compress2():
  147. // Returns MZ_OK on success, or one of the error codes from mz_deflate() on failure.
  148. int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len);
  149. int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len, int level);
  150. // mz_compressBound() returns a (very) conservative upper bound on the amount of data that could be generated by calling mz_compress().
  151. mz_ulong mz_compressBound(mz_ulong source_len);
  152. // Initializes a decompressor.
  153. int mz_inflateInit(mz_streamp pStream);
  154. // 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:
  155. // window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate).
  156. int mz_inflateInit2(mz_streamp pStream, int window_bits);
  157. // 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.
  158. // Parameters:
  159. // 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.
  160. // flush may be MZ_NO_FLUSH, MZ_SYNC_FLUSH, or MZ_FINISH.
  161. // 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).
  162. // 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.
  163. // Return values:
  164. // 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.
  165. // 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.
  166. // MZ_STREAM_ERROR if the stream is bogus.
  167. // MZ_DATA_ERROR if the deflate stream is invalid.
  168. // MZ_PARAM_ERROR if one of the parameters is invalid.
  169. // 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
  170. // with more input data, or with more room in the output buffer (except when using single call decompression, described above).
  171. int mz_inflate(mz_streamp pStream, int flush);
  172. // Deinitializes a decompressor.
  173. int mz_inflateEnd(mz_streamp pStream);
  174. // Single-call decompression.
  175. // Returns MZ_OK on success, or one of the error codes from mz_inflate() on failure.
  176. int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len);
  177. // Returns a string description of the specified error code, or NULL if the error code is invalid.
  178. const char *mz_error(int err);
  179. // 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.
  180. // Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility if you use zlib in the same project.
  181. #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES
  182. typedef unsigned char Byte;
  183. typedef unsigned int uInt;
  184. typedef mz_ulong uLong;
  185. typedef Byte Bytef;
  186. typedef uInt uIntf;
  187. typedef char charf;
  188. typedef int intf;
  189. typedef void *voidpf;
  190. typedef uLong uLongf;
  191. typedef void *voidp;
  192. typedef void *const voidpc;
  193. #define Z_NULL 0
  194. #define Z_NO_FLUSH MZ_NO_FLUSH
  195. #define Z_PARTIAL_FLUSH MZ_PARTIAL_FLUSH
  196. #define Z_SYNC_FLUSH MZ_SYNC_FLUSH
  197. #define Z_FULL_FLUSH MZ_FULL_FLUSH
  198. #define Z_FINISH MZ_FINISH
  199. #define Z_BLOCK MZ_BLOCK
  200. #define Z_OK MZ_OK
  201. #define Z_STREAM_END MZ_STREAM_END
  202. #define Z_NEED_DICT MZ_NEED_DICT
  203. #define Z_ERRNO MZ_ERRNO
  204. #define Z_STREAM_ERROR MZ_STREAM_ERROR
  205. #define Z_DATA_ERROR MZ_DATA_ERROR
  206. #define Z_MEM_ERROR MZ_MEM_ERROR
  207. #define Z_BUF_ERROR MZ_BUF_ERROR
  208. #define Z_VERSION_ERROR MZ_VERSION_ERROR
  209. #define Z_PARAM_ERROR MZ_PARAM_ERROR
  210. #define Z_NO_COMPRESSION MZ_NO_COMPRESSION
  211. #define Z_BEST_SPEED MZ_BEST_SPEED
  212. #define Z_BEST_COMPRESSION MZ_BEST_COMPRESSION
  213. #define Z_DEFAULT_COMPRESSION MZ_DEFAULT_COMPRESSION
  214. #define Z_DEFAULT_STRATEGY MZ_DEFAULT_STRATEGY
  215. #define Z_FILTERED MZ_FILTERED
  216. #define Z_HUFFMAN_ONLY MZ_HUFFMAN_ONLY
  217. #define Z_RLE MZ_RLE
  218. #define Z_FIXED MZ_FIXED
  219. #define Z_DEFLATED MZ_DEFLATED
  220. #define Z_DEFAULT_WINDOW_BITS MZ_DEFAULT_WINDOW_BITS
  221. #define alloc_func mz_alloc_func
  222. #define free_func mz_free_func
  223. #define internal_state mz_internal_state
  224. #define z_stream mz_stream
  225. #define deflateInit mz_deflateInit
  226. #define deflateInit2 mz_deflateInit2
  227. #define deflateReset mz_deflateReset
  228. #define deflate mz_deflate
  229. #define deflateEnd mz_deflateEnd
  230. #define deflateBound mz_deflateBound
  231. #define compress mz_compress
  232. #define compress2 mz_compress2
  233. #define compressBound mz_compressBound
  234. #define inflateInit mz_inflateInit
  235. #define inflateInit2 mz_inflateInit2
  236. #define inflate mz_inflate
  237. #define inflateEnd mz_inflateEnd
  238. #define uncompress mz_uncompress
  239. #define crc32 mz_crc32
  240. #define adler32 mz_adler32
  241. #define MAX_WBITS 15
  242. #define MAX_MEM_LEVEL 9
  243. #define zError mz_error
  244. #define ZLIB_VERSION MZ_VERSION
  245. #define ZLIB_VERNUM MZ_VERNUM
  246. #define ZLIB_VER_MAJOR MZ_VER_MAJOR
  247. #define ZLIB_VER_MINOR MZ_VER_MINOR
  248. #define ZLIB_VER_REVISION MZ_VER_REVISION
  249. #define ZLIB_VER_SUBREVISION MZ_VER_SUBREVISION
  250. #define zlibVersion mz_version
  251. #define zlib_version mz_version()
  252. #endif // #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES
  253. #endif // MINIZ_NO_ZLIB_APIS
  254. // ------------------- Types and macros
  255. typedef unsigned char mz_uint8;
  256. typedef signed short mz_int16;
  257. typedef unsigned short mz_uint16;
  258. typedef unsigned int mz_uint32;
  259. typedef unsigned int mz_uint;
  260. typedef long long mz_int64;
  261. typedef unsigned long long mz_uint64;
  262. typedef int mz_bool;
  263. #define MZ_FALSE (0)
  264. #define MZ_TRUE (1)
  265. // An attempt to work around MSVC's spammy "warning C4127: conditional expression is constant" message.
  266. #ifdef _MSC_VER
  267. #define MZ_MACRO_END while (0, 0)
  268. #else
  269. #define MZ_MACRO_END while (0)
  270. #endif
  271. // ------------------- ZIP archive reading/writing
  272. #ifndef MINIZ_NO_ARCHIVE_APIS
  273. enum
  274. {
  275. MZ_ZIP_MAX_IO_BUF_SIZE = 64*1024,
  276. MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 260,
  277. MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 256
  278. };
  279. typedef struct
  280. {
  281. mz_uint32 m_file_index;
  282. mz_uint32 m_central_dir_ofs;
  283. mz_uint16 m_version_made_by;
  284. mz_uint16 m_version_needed;
  285. mz_uint16 m_bit_flag;
  286. mz_uint16 m_method;
  287. #ifndef MINIZ_NO_TIME
  288. time_t m_time;
  289. #endif
  290. mz_uint32 m_crc32;
  291. mz_uint64 m_comp_size;
  292. mz_uint64 m_uncomp_size;
  293. mz_uint16 m_internal_attr;
  294. mz_uint32 m_external_attr;
  295. mz_uint64 m_local_header_ofs;
  296. mz_uint32 m_comment_size;
  297. char m_filename[MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE];
  298. char m_comment[MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE];
  299. } mz_zip_archive_file_stat;
  300. typedef size_t (*mz_file_read_func)(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n);
  301. typedef size_t (*mz_file_write_func)(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n);
  302. struct mz_zip_internal_state_tag;
  303. typedef struct mz_zip_internal_state_tag mz_zip_internal_state;
  304. typedef enum
  305. {
  306. MZ_ZIP_MODE_INVALID = 0,
  307. MZ_ZIP_MODE_READING = 1,
  308. MZ_ZIP_MODE_WRITING = 2,
  309. MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3
  310. } mz_zip_mode;
  311. typedef struct mz_zip_archive_tag
  312. {
  313. mz_uint64 m_archive_size;
  314. mz_uint64 m_central_directory_file_ofs;
  315. mz_uint m_total_files;
  316. mz_zip_mode m_zip_mode;
  317. mz_uint m_file_offset_alignment;
  318. mz_alloc_func m_pAlloc;
  319. mz_free_func m_pFree;
  320. mz_realloc_func m_pRealloc;
  321. void *m_pAlloc_opaque;
  322. mz_file_read_func m_pRead;
  323. mz_file_write_func m_pWrite;
  324. void *m_pIO_opaque;
  325. mz_zip_internal_state *m_pState;
  326. } mz_zip_archive;
  327. typedef enum
  328. {
  329. MZ_ZIP_FLAG_CASE_SENSITIVE = 0x0100,
  330. MZ_ZIP_FLAG_IGNORE_PATH = 0x0200,
  331. MZ_ZIP_FLAG_COMPRESSED_DATA = 0x0400,
  332. MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY = 0x0800
  333. } mz_zip_flags;
  334. // ZIP archive reading
  335. // Inits a ZIP archive reader.
  336. // These functions read and validate the archive's central directory.
  337. mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, mz_uint32 flags);
  338. mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, size_t size, mz_uint32 flags);
  339. #ifndef MINIZ_NO_STDIO
  340. mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint32 flags);
  341. #endif
  342. // Returns the total number of files in the archive.
  343. mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip);
  344. // Returns detailed information about an archive file entry.
  345. mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, mz_zip_archive_file_stat *pStat);
  346. // Determines if an archive file entry is a directory entry.
  347. mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, mz_uint file_index);
  348. mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, mz_uint file_index);
  349. // Retrieves the filename of an archive file entry.
  350. // 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.
  351. mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, char *pFilename, mz_uint filename_buf_size);
  352. // Attempts to locates a file in the archive's central directory.
  353. // Valid flags: MZ_ZIP_FLAG_CASE_SENSITIVE, MZ_ZIP_FLAG_IGNORE_PATH
  354. // Returns -1 if the file cannot be found.
  355. int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags);
  356. // Extracts a archive file to a memory buffer using no memory allocation.
  357. 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);
  358. 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);
  359. // Extracts a archive file to a memory buffer.
  360. 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);
  361. 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);
  362. // Extracts a archive file to a dynamically allocated heap buffer.
  363. void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, size_t *pSize, mz_uint flags);
  364. void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, const char *pFilename, size_t *pSize, mz_uint flags);
  365. // Extracts a archive file using a callback function to output the file's data.
  366. 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);
  367. 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);
  368. #ifndef MINIZ_NO_STDIO
  369. // Extracts a archive file to a disk file and sets its last accessed and modified times.
  370. // This function only extracts files, not archive directory records.
  371. mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, const char *pDst_filename, mz_uint flags);
  372. mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, mz_uint flags);
  373. #endif
  374. // Ends archive reading, freeing all allocations, and closing the input archive file if mz_zip_reader_init_file() was used.
  375. mz_bool mz_zip_reader_end(mz_zip_archive *pZip);
  376. // ZIP archive writing
  377. #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
  378. // Inits a ZIP archive writer.
  379. mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size);
  380. mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size);
  381. #ifndef MINIZ_NO_STDIO
  382. mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning);
  383. #endif
  384. // Converts a ZIP archive reader object into a writer object, to allow efficient in-place file appends to occur on an existing archive.
  385. // 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.
  386. // 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).
  387. // Finally, for archives opened using mz_zip_reader_init, the mz_zip_archive's user provided m_pWrite function cannot be NULL.
  388. // Note: In-place archive modification is not recommended unless you know what you're doing, because if execution stops or something goes wrong before
  389. // the archive is finalized the file's central directory will be hosed.
  390. mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, const char *pFilename);
  391. // Adds the contents of a memory buffer to an archive. These functions record the current local time into the archive.
  392. // To add a directory entry, call this method with an archive name ending in a forwardslash with empty buffer.
  393. // 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.
  394. 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);
  395. 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);
  396. #ifndef MINIZ_NO_STDIO
  397. // Adds the contents of a disk file to an archive. This function also records the disk file's modified time into the archive.
  398. // 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.
  399. 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);
  400. #endif
  401. // Adds a file to an archive by fully cloning the data from another archive.
  402. // This function fully clones the source file's compressed data (no recompression), along with its full filename, extra data, and comment fields.
  403. mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *pSource_zip, mz_uint file_index);
  404. // Finalizes the archive by writing the central directory records followed by the end of central directory record.
  405. // After an archive is finalized, the only valid call on the mz_zip_archive struct is mz_zip_writer_end().
  406. // An archive must be manually finalized by calling this function for it to be valid.
  407. mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip);
  408. mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **pBuf, size_t *pSize);
  409. // Ends archive writing, freeing all allocations, and closing the output file if mz_zip_writer_init_file() was used.
  410. // Note for the archive to be valid, it must have been finalized before ending.
  411. mz_bool mz_zip_writer_end(mz_zip_archive *pZip);
  412. // Misc. high-level helper functions:
  413. // mz_zip_add_mem_to_archive_file_in_place() efficiently (but not atomically) appends a memory blob to a ZIP archive.
  414. // 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.
  415. 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);
  416. // Reads a single file from an archive into a heap block.
  417. // Returns NULL on failure.
  418. void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint zip_flags);
  419. #endif // #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
  420. #endif // #ifndef MINIZ_NO_ARCHIVE_APIS
  421. // ------------------- Low-level Decompression API Definitions
  422. // Decompression flags used by tinfl_decompress().
  423. // 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.
  424. // 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.
  425. // 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).
  426. // TINFL_FLAG_COMPUTE_ADLER32: Force adler-32 checksum computation of the decompressed bytes.
  427. enum
  428. {
  429. TINFL_FLAG_PARSE_ZLIB_HEADER = 1,
  430. TINFL_FLAG_HAS_MORE_INPUT = 2,
  431. TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF = 4,
  432. TINFL_FLAG_COMPUTE_ADLER32 = 8
  433. };
  434. // High level decompression functions:
  435. // tinfl_decompress_mem_to_heap() decompresses a block in memory to a heap block allocated via malloc().
  436. // On entry:
  437. // pSrc_buf, src_buf_len: Pointer and size of the Deflate or zlib source data to decompress.
  438. // On return:
  439. // Function returns a pointer to the decompressed data, or NULL on failure.
  440. // *pOut_len will be set to the decompressed data's size, which could be larger than src_buf_len on uncompressible data.
  441. // The caller must call mz_free() on the returned block when it's no longer needed.
  442. void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags);
  443. // tinfl_decompress_mem_to_mem() decompresses a block in memory to another block in memory.
  444. // Returns TINFL_DECOMPRESS_MEM_TO_MEM_FAILED on failure, or the number of bytes written on success.
  445. #define TINFL_DECOMPRESS_MEM_TO_MEM_FAILED ((size_t)(-1))
  446. 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);
  447. // 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.
  448. // Returns 1 on success or 0 on failure.
  449. typedef int (*tinfl_put_buf_func_ptr)(const void* pBuf, int len, void *pUser);
  450. 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);
  451. struct tinfl_decompressor_tag; typedef struct tinfl_decompressor_tag tinfl_decompressor;
  452. // Max size of LZ dictionary.
  453. #define TINFL_LZ_DICT_SIZE 32768
  454. // Return status.
  455. typedef enum
  456. {
  457. TINFL_STATUS_BAD_PARAM = -3,
  458. TINFL_STATUS_ADLER32_MISMATCH = -2,
  459. TINFL_STATUS_FAILED = -1,
  460. TINFL_STATUS_DONE = 0,
  461. TINFL_STATUS_NEEDS_MORE_INPUT = 1,
  462. TINFL_STATUS_HAS_MORE_OUTPUT = 2
  463. } tinfl_status;
  464. // Initializes the decompressor to its initial state.
  465. #define tinfl_init(r) do { (r)->m_state = 0; } MZ_MACRO_END
  466. #define tinfl_get_adler32(r) (r)->m_check_adler32
  467. // 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.
  468. // 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.
  469. 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);
  470. // Internal/private bits follow.
  471. enum
  472. {
  473. TINFL_MAX_HUFF_TABLES = 3, TINFL_MAX_HUFF_SYMBOLS_0 = 288, TINFL_MAX_HUFF_SYMBOLS_1 = 32, TINFL_MAX_HUFF_SYMBOLS_2 = 19,
  474. TINFL_FAST_LOOKUP_BITS = 10, TINFL_FAST_LOOKUP_SIZE = 1 << TINFL_FAST_LOOKUP_BITS
  475. };
  476. typedef struct
  477. {
  478. mz_uint8 m_code_size[TINFL_MAX_HUFF_SYMBOLS_0];
  479. mz_int16 m_look_up[TINFL_FAST_LOOKUP_SIZE], m_tree[TINFL_MAX_HUFF_SYMBOLS_0 * 2];
  480. } tinfl_huff_table;
  481. #if MINIZ_HAS_64BIT_REGISTERS
  482. #define TINFL_USE_64BIT_BITBUF 1
  483. #endif
  484. #if TINFL_USE_64BIT_BITBUF
  485. typedef mz_uint64 tinfl_bit_buf_t;
  486. #define TINFL_BITBUF_SIZE (64)
  487. #else
  488. typedef mz_uint32 tinfl_bit_buf_t;
  489. #define TINFL_BITBUF_SIZE (32)
  490. #endif
  491. struct tinfl_decompressor_tag
  492. {
  493. 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];
  494. tinfl_bit_buf_t m_bit_buf;
  495. size_t m_dist_from_out_buf_start;
  496. tinfl_huff_table m_tables[TINFL_MAX_HUFF_TABLES];
  497. mz_uint8 m_raw_header[4], m_len_codes[TINFL_MAX_HUFF_SYMBOLS_0 + TINFL_MAX_HUFF_SYMBOLS_1 + 137];
  498. };
  499. // ------------------- Low-level Compression API Definitions
  500. // Set TDEFL_LESS_MEMORY to 1 to use less memory (compression will be slightly slower, and raw/dynamic blocks will be output more frequently).
  501. #define TDEFL_LESS_MEMORY 0
  502. // tdefl_init() compression flags logically OR'd together (low 12 bits contain the max. number of probes per dictionary search):
  503. // 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).
  504. enum
  505. {
  506. TDEFL_HUFFMAN_ONLY = 0, TDEFL_DEFAULT_MAX_PROBES = 128, TDEFL_MAX_PROBES_MASK = 0xFFF
  507. };
  508. // 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.
  509. // TDEFL_COMPUTE_ADLER32: Always compute the adler-32 of the input data (even when not writing zlib headers).
  510. // TDEFL_GREEDY_PARSING_FLAG: Set to use faster greedy parsing, instead of more efficient lazy parsing.
  511. // 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).
  512. // TDEFL_RLE_MATCHES: Only look for RLE matches (matches with a distance of 1)
  513. // TDEFL_FILTER_MATCHES: Discards matches <= 5 chars if enabled.
  514. // TDEFL_FORCE_ALL_STATIC_BLOCKS: Disable usage of optimized Huffman tables.
  515. // TDEFL_FORCE_ALL_RAW_BLOCKS: Only use raw (uncompressed) deflate blocks.
  516. // The low 12 bits are reserved to control the max # of hash probes per dictionary lookup (see TDEFL_MAX_PROBES_MASK).
  517. enum
  518. {
  519. TDEFL_WRITE_ZLIB_HEADER = 0x01000,
  520. TDEFL_COMPUTE_ADLER32 = 0x02000,
  521. TDEFL_GREEDY_PARSING_FLAG = 0x04000,
  522. TDEFL_NONDETERMINISTIC_PARSING_FLAG = 0x08000,
  523. TDEFL_RLE_MATCHES = 0x10000,
  524. TDEFL_FILTER_MATCHES = 0x20000,
  525. TDEFL_FORCE_ALL_STATIC_BLOCKS = 0x40000,
  526. TDEFL_FORCE_ALL_RAW_BLOCKS = 0x80000
  527. };
  528. // High level compression functions:
  529. // tdefl_compress_mem_to_heap() compresses a block in memory to a heap block allocated via malloc().
  530. // On entry:
  531. // pSrc_buf, src_buf_len: Pointer and size of source block to compress.
  532. // flags: The max match finder probes (default is 128) logically OR'd against the above flags. Higher probes are slower but improve compression.
  533. // On return:
  534. // Function returns a pointer to the compressed data, or NULL on failure.
  535. // *pOut_len will be set to the compressed data's size, which could be larger than src_buf_len on uncompressible data.
  536. // The caller must free() the returned block when it's no longer needed.
  537. void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags);
  538. // tdefl_compress_mem_to_mem() compresses a block in memory to another block in memory.
  539. // Returns 0 on failure.
  540. 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);
  541. // Compresses an image to a compressed PNG file in memory.
  542. // On entry:
  543. // pImage, w, h, and num_chans describe the image to compress. num_chans may be 1, 2, 3, or 4.
  544. // The image pitch in bytes per scanline will be w*num_chans. The leftmost pixel on the top scanline is stored first in memory.
  545. // 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
  546. // If flip is true, the image will be flipped on the Y axis (useful for OpenGL apps).
  547. // On return:
  548. // Function returns a pointer to the compressed data, or NULL on failure.
  549. // *pLen_out will be set to the size of the PNG image file.
  550. // The caller must mz_free() the returned heap block (which will typically be larger than *pLen_out) when it's no longer needed.
  551. 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);
  552. void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out);
  553. // Output stream interface. The compressor uses this interface to write compressed data. It'll typically be called TDEFL_OUT_BUF_SIZE at a time.
  554. typedef mz_bool (*tdefl_put_buf_func_ptr)(const void* pBuf, int len, void *pUser);
  555. // tdefl_compress_mem_to_output() compresses a block to an output stream. The above helpers use this function internally.
  556. 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);
  557. 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 };
  558. // TDEFL_OUT_BUF_SIZE MUST be large enough to hold a single entire compressed output block (using static/fixed Huffman codes).
  559. #if TDEFL_LESS_MEMORY
  560. 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 };
  561. #else
  562. 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 };
  563. #endif
  564. // 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.
  565. typedef enum
  566. {
  567. TDEFL_STATUS_BAD_PARAM = -2,
  568. TDEFL_STATUS_PUT_BUF_FAILED = -1,
  569. TDEFL_STATUS_OKAY = 0,
  570. TDEFL_STATUS_DONE = 1,
  571. } tdefl_status;
  572. // Must map to MZ_NO_FLUSH, MZ_SYNC_FLUSH, etc. enums
  573. typedef enum
  574. {
  575. TDEFL_NO_FLUSH = 0,
  576. TDEFL_SYNC_FLUSH = 2,
  577. TDEFL_FULL_FLUSH = 3,
  578. TDEFL_FINISH = 4
  579. } tdefl_flush;
  580. // tdefl's compression state structure.
  581. typedef struct
  582. {
  583. tdefl_put_buf_func_ptr m_pPut_buf_func;
  584. void *m_pPut_buf_user;
  585. mz_uint m_flags, m_max_probes[2];
  586. int m_greedy_parsing;
  587. mz_uint m_adler32, m_lookahead_pos, m_lookahead_size, m_dict_size;
  588. mz_uint8 *m_pLZ_code_buf, *m_pLZ_flags, *m_pOutput_buf, *m_pOutput_buf_end;
  589. mz_uint m_num_flags_left, m_total_lz_bytes, m_lz_code_buf_dict_pos, m_bits_in, m_bit_buffer;
  590. 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;
  591. tdefl_status m_prev_return_status;
  592. const void *m_pIn_buf;
  593. void *m_pOut_buf;
  594. size_t *m_pIn_buf_size, *m_pOut_buf_size;
  595. tdefl_flush m_flush;
  596. const mz_uint8 *m_pSrc;
  597. size_t m_src_buf_left, m_out_buf_ofs;
  598. mz_uint8 m_dict[TDEFL_LZ_DICT_SIZE + TDEFL_MAX_MATCH_LEN - 1];
  599. mz_uint16 m_huff_count[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS];
  600. mz_uint16 m_huff_codes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS];
  601. mz_uint8 m_huff_code_sizes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS];
  602. mz_uint8 m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE];
  603. mz_uint16 m_next[TDEFL_LZ_DICT_SIZE];
  604. mz_uint16 m_hash[TDEFL_LZ_HASH_SIZE];
  605. mz_uint8 m_output_buf[TDEFL_OUT_BUF_SIZE];
  606. } tdefl_compressor;
  607. // Initializes the compressor.
  608. // There is no corresponding deinit() function because the tdefl API's do not dynamically allocate memory.
  609. // 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.
  610. // If pBut_buf_func is NULL the user should always call the tdefl_compress() API.
  611. // flags: See the above enums (TDEFL_HUFFMAN_ONLY, TDEFL_WRITE_ZLIB_HEADER, etc.)
  612. tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags);
  613. // 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.
  614. 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);
  615. // tdefl_compress_buffer() is only usable when the tdefl_init() is called with a non-NULL tdefl_put_buf_func_ptr.
  616. // tdefl_compress_buffer() always consumes the entire input buffer.
  617. tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, tdefl_flush flush);
  618. tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d);
  619. mz_uint32 tdefl_get_adler32(tdefl_compressor *d);
  620. // 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.
  621. #ifndef MINIZ_NO_ZLIB_APIS
  622. // Create tdefl_compress() flags given zlib-style compression parameters.
  623. // level may range from [0,10] (where 10 is absolute max compression, but may be much slower on some files)
  624. // window_bits may be -15 (raw deflate) or 15 (zlib)
  625. // strategy may be either MZ_DEFAULT_STRATEGY, MZ_FILTERED, MZ_HUFFMAN_ONLY, MZ_RLE, or MZ_FIXED
  626. mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy);
  627. #endif // #ifndef MINIZ_NO_ZLIB_APIS
  628. #ifdef __cplusplus
  629. }
  630. #endif
  631. #endif // MINIZ_HEADER_INCLUDED