1 #ifndef MINIZ_HEADER_INCLUDED 2 #define MINIZ_HEADER_INCLUDED 3 4 #include <stdlib.h> 5 6 #if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS) 7 #include <time.h> 8 #endif 9 10 // Defines to completely disable specific portions of miniz.c: 11 // If all macros here are defined the only functionality remaining will be CRC-32, adler-32, tinfl, and tdefl. 12 13 // Define MINIZ_NO_STDIO to disable all usage and any functions which rely on stdio for file I/O. 14 //#define MINIZ_NO_STDIO 15 16 // If MINIZ_NO_TIME is specified then the ZIP archive functions will not be able to get the current time, or 17 // get/set file times. 18 //#define MINIZ_NO_TIME 19 20 // Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's. 21 //#define MINIZ_NO_ARCHIVE_APIS 22 23 // Define MINIZ_NO_ARCHIVE_APIS to disable all writing related ZIP archive API's. 24 //#define MINIZ_NO_ARCHIVE_WRITING_APIS 25 26 // Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style compression/decompression API's. 27 //#define MINIZ_NO_ZLIB_APIS 28 29 // Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to prevent conflicts against stock zlib. 30 //#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES 31 32 // Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and realloc. 33 // Note if MINIZ_NO_MALLOC is defined then the user must always provide custom user alloc/free/realloc 34 // callbacks to the zlib and archive API's, and a few stand-alone helper API's which don't provide custom user 35 // functions (such as tdefl_compress_mem_to_heap() and tinfl_decompress_mem_to_heap()) won't work. 36 //#define MINIZ_NO_MALLOC 37 38 #if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || defined(__i386) || defined(__i486__) || defined(__i486) || defined(i386) || defined(__ia64__) || defined(__x86_64__) 39 // MINIZ_X86_OR_X64_CPU is only used to help set the below macros. 40 #define MINIZ_X86_OR_X64_CPU 1 41 #endif 42 43 #if (__BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU 44 // Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian. 45 #define MINIZ_LITTLE_ENDIAN 1 46 #endif 47 48 #if MINIZ_X86_OR_X64_CPU 49 // Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient integer loads and stores from unaligned addresses. 50 #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1 51 #endif 52 53 #if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__) || defined(__ia64__) || defined(__x86_64__) 54 // 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). 55 #define MINIZ_HAS_64BIT_REGISTERS 1 56 #endif 57 58 #ifdef __cplusplus 59 extern "C" { 60 #endif 61 62 // ------------------- zlib-style API Definitions. 63 64 // 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! 65 typedef unsigned long mz_ulong; 66 67 // 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. 68 void mz_free(void *p); 69 70 #define MZ_ADLER32_INIT (1) 71 // mz_adler32() returns the initial adler-32 value to use when called with ptr==NULL. 72 mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len); 73 74 #define MZ_CRC32_INIT (0) 75 // mz_crc32() returns the initial CRC-32 value to use when called with ptr==NULL. 76 mz_ulong mz_crc32(mz_ulong crc, const unsigned char *ptr, size_t buf_len); 77 78 // Compression strategies. 79 enum { MZ_DEFAULT_STRATEGY = 0, MZ_FILTERED = 1, MZ_HUFFMAN_ONLY = 2, MZ_RLE = 3, MZ_FIXED = 4 }; 80 81 // Method 82 #define MZ_DEFLATED 8 83 84 #ifndef MINIZ_NO_ZLIB_APIS 85 86 // Heap allocation callbacks. 87 // Note that mz_alloc_func parameter types purpsosely differ from zlib's: items/size is size_t, not unsigned long. 88 typedef void *(*mz_alloc_func)(void *opaque, size_t items, size_t size); 89 typedef void(*mz_free_func)(void *opaque, void *address); 90 typedef void *(*mz_realloc_func)(void *opaque, void *address, size_t items, size_t size); 91 92 #define MZ_VERSION "9.1.14" 93 #define MZ_VERNUM 0x91E0 94 #define MZ_VER_MAJOR 9 95 #define MZ_VER_MINOR 1 96 #define MZ_VER_REVISION 14 97 #define MZ_VER_SUBREVISION 0 98 99 // 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). 100 enum { MZ_NO_FLUSH = 0, MZ_PARTIAL_FLUSH = 1, MZ_SYNC_FLUSH = 2, MZ_FULL_FLUSH = 3, MZ_FINISH = 4, MZ_BLOCK = 5 }; 101 102 // Return status codes. MZ_PARAM_ERROR is non-standard. 103 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 }; 104 105 // 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. 106 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 }; 107 108 // Window bits 109 #define MZ_DEFAULT_WINDOW_BITS 15 110 111 struct mz_internal_state; 112 113 // Compression/decompression stream struct. 114 typedef struct mz_stream_s 115 { 116 const unsigned char *next_in; // pointer to next byte to read 117 unsigned int avail_in; // number of bytes available at next_in 118 mz_ulong total_in; // total number of bytes consumed so far 119 120 unsigned char *next_out; // pointer to next byte to write 121 unsigned int avail_out; // number of bytes that can be written to next_out 122 mz_ulong total_out; // total number of bytes produced so far 123 124 char *msg; // error msg (unused) 125 struct mz_internal_state *state; // internal state, allocated by zalloc/zfree 126 127 mz_alloc_func zalloc; // optional heap allocation function (defaults to malloc) 128 mz_free_func zfree; // optional heap free function (defaults to free) 129 void *opaque; // heap alloc function user pointer 130 131 int data_type; // data_type (unused) 132 mz_ulong adler; // adler32 of the source or uncompressed data 133 mz_ulong reserved; // not used 134 } mz_stream; 135 136 typedef mz_stream *mz_streamp; 137 138 // Returns the version string of miniz.c. 139 const char *mz_version(void); 140 141 // mz_deflateInit() initializes a compressor with default options: 142 // Parameters: 143 // pStream must point to an initialized mz_stream struct. 144 // level must be between [MZ_NO_COMPRESSION, MZ_BEST_COMPRESSION]. 145 // level 1 enables a specially optimized compression function that's been optimized purely for performance, not ratio. 146 // (This special func. is currently only enabled when MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are defined.) 147 // Return values: 148 // MZ_OK on success. 149 // MZ_STREAM_ERROR if the stream is bogus. 150 // MZ_PARAM_ERROR if the input parameters are bogus. 151 // MZ_MEM_ERROR on out of memory. 152 int mz_deflateInit(mz_streamp pStream, int level); 153 154 // mz_deflateInit2() is like mz_deflate(), except with more control: 155 // Additional parameters: 156 // method must be MZ_DEFLATED 157 // 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) 158 // mem_level must be between [1, 9] (it's checked but ignored by miniz.c) 159 int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy); 160 161 // Quickly resets a compressor without having to reallocate anything. Same as calling mz_deflateEnd() followed by mz_deflateInit()/mz_deflateInit2(). 162 int mz_deflateReset(mz_streamp pStream); 163 164 // mz_deflate() compresses the input to output, consuming as much of the input and producing as much output as possible. 165 // Parameters: 166 // 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. 167 // flush may be MZ_NO_FLUSH, MZ_PARTIAL_FLUSH/MZ_SYNC_FLUSH, MZ_FULL_FLUSH, or MZ_FINISH. 168 // Return values: 169 // 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). 170 // 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. 171 // MZ_STREAM_ERROR if the stream is bogus. 172 // MZ_PARAM_ERROR if one of the parameters is invalid. 173 // 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.) 174 int mz_deflate(mz_streamp pStream, int flush); 175 176 // mz_deflateEnd() deinitializes a compressor: 177 // Return values: 178 // MZ_OK on success. 179 // MZ_STREAM_ERROR if the stream is bogus. 180 int mz_deflateEnd(mz_streamp pStream); 181 182 // 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. 183 mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len); 184 185 // Single-call compression functions mz_compress() and mz_compress2(): 186 // Returns MZ_OK on success, or one of the error codes from mz_deflate() on failure. 187 int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len); 188 int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len, int level); 189 190 // mz_compressBound() returns a (very) conservative upper bound on the amount of data that could be generated by calling mz_compress(). 191 mz_ulong mz_compressBound(mz_ulong source_len); 192 193 // Initializes a decompressor. 194 int mz_inflateInit(mz_streamp pStream); 195 196 // 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: 197 // window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate). 198 int mz_inflateInit2(mz_streamp pStream, int window_bits); 199 200 // 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. 201 // Parameters: 202 // 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. 203 // flush may be MZ_NO_FLUSH, MZ_SYNC_FLUSH, or MZ_FINISH. 204 // 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). 205 // 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. 206 // Return values: 207 // 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. 208 // 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. 209 // MZ_STREAM_ERROR if the stream is bogus. 210 // MZ_DATA_ERROR if the deflate stream is invalid. 211 // MZ_PARAM_ERROR if one of the parameters is invalid. 212 // 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 213 // with more input data, or with more room in the output buffer (except when using single call decompression, described above). 214 int mz_inflate(mz_streamp pStream, int flush); 215 216 // Deinitializes a decompressor. 217 int mz_inflateEnd(mz_streamp pStream); 218 219 // Single-call decompression. 220 // Returns MZ_OK on success, or one of the error codes from mz_inflate() on failure. 221 int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len); 222 223 // Returns a string description of the specified error code, or NULL if the error code is invalid. 224 const char *mz_error(int err); 225 226 // 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. 227 // Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility if you use zlib in the same project. 228 #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES 229 typedef unsigned char Byte; 230 typedef unsigned int uInt; 231 typedef mz_ulong uLong; 232 typedef Byte Bytef; 233 typedef uInt uIntf; 234 typedef char charf; 235 typedef int intf; 236 typedef void *voidpf; 237 typedef uLong uLongf; 238 typedef void *voidp; 239 typedef void *const voidpc; 240 #define Z_NULL 0 241 #define Z_NO_FLUSH MZ_NO_FLUSH 242 #define Z_PARTIAL_FLUSH MZ_PARTIAL_FLUSH 243 #define Z_SYNC_FLUSH MZ_SYNC_FLUSH 244 #define Z_FULL_FLUSH MZ_FULL_FLUSH 245 #define Z_FINISH MZ_FINISH 246 #define Z_BLOCK MZ_BLOCK 247 #define Z_OK MZ_OK 248 #define Z_STREAM_END MZ_STREAM_END 249 #define Z_NEED_DICT MZ_NEED_DICT 250 #define Z_ERRNO MZ_ERRNO 251 #define Z_STREAM_ERROR MZ_STREAM_ERROR 252 #define Z_DATA_ERROR MZ_DATA_ERROR 253 #define Z_MEM_ERROR MZ_MEM_ERROR 254 #define Z_BUF_ERROR MZ_BUF_ERROR 255 #define Z_VERSION_ERROR MZ_VERSION_ERROR 256 #define Z_PARAM_ERROR MZ_PARAM_ERROR 257 #define Z_NO_COMPRESSION MZ_NO_COMPRESSION 258 #define Z_BEST_SPEED MZ_BEST_SPEED 259 #define Z_BEST_COMPRESSION MZ_BEST_COMPRESSION 260 #define Z_DEFAULT_COMPRESSION MZ_DEFAULT_COMPRESSION 261 #define Z_DEFAULT_STRATEGY MZ_DEFAULT_STRATEGY 262 #define Z_FILTERED MZ_FILTERED 263 #define Z_HUFFMAN_ONLY MZ_HUFFMAN_ONLY 264 #define Z_RLE MZ_RLE 265 #define Z_FIXED MZ_FIXED 266 #define Z_DEFLATED MZ_DEFLATED 267 #define Z_DEFAULT_WINDOW_BITS MZ_DEFAULT_WINDOW_BITS 268 #define alloc_func mz_alloc_func 269 #define free_func mz_free_func 270 #define internal_state mz_internal_state 271 #define z_stream mz_stream 272 #define deflateInit mz_deflateInit 273 #define deflateInit2 mz_deflateInit2 274 #define deflateReset mz_deflateReset 275 #define deflate mz_deflate 276 #define deflateEnd mz_deflateEnd 277 #define deflateBound mz_deflateBound 278 #define compress mz_compress 279 #define compress2 mz_compress2 280 #define compressBound mz_compressBound 281 #define inflateInit mz_inflateInit 282 #define inflateInit2 mz_inflateInit2 283 #define inflate mz_inflate 284 #define inflateEnd mz_inflateEnd 285 #define uncompress mz_uncompress 286 #define crc32 mz_crc32 287 #define adler32 mz_adler32 288 #define MAX_WBITS 15 289 #define MAX_MEM_LEVEL 9 290 #define zError mz_error 291 #define ZLIB_VERSION MZ_VERSION 292 #define ZLIB_VERNUM MZ_VERNUM 293 #define ZLIB_VER_MAJOR MZ_VER_MAJOR 294 #define ZLIB_VER_MINOR MZ_VER_MINOR 295 #define ZLIB_VER_REVISION MZ_VER_REVISION 296 #define ZLIB_VER_SUBREVISION MZ_VER_SUBREVISION 297 #define zlibVersion mz_version 298 #define zlib_version mz_version() 299 #endif // #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES 300 301 #endif // MINIZ_NO_ZLIB_APIS 302 303 // ------------------- Types and macros 304 305 typedef unsigned char mz_uint8; 306 typedef signed short mz_int16; 307 typedef unsigned short mz_uint16; 308 typedef unsigned int mz_uint32; 309 typedef unsigned int mz_uint; 310 typedef long long mz_int64; 311 typedef unsigned long long mz_uint64; 312 typedef int mz_bool; 313 314 #define MZ_FALSE (0) 315 #define MZ_TRUE (1) 316 317 // Works around MSVC's spammy "warning C4127: conditional expression is constant" message. 318 #ifdef _MSC_VER 319 #define MZ_MACRO_END while (0, 0) 320 #else 321 #define MZ_MACRO_END while (0) 322 #endif 323 324 // ------------------- ZIP archive reading/writing 325 326 #ifndef MINIZ_NO_ARCHIVE_APIS 327 328 enum 329 { 330 MZ_ZIP_MAX_IO_BUF_SIZE = 64 * 1024, 331 MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 260, 332 MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 256 333 }; 334 335 typedef struct 336 { 337 mz_uint32 m_file_index; 338 mz_uint32 m_central_dir_ofs; 339 mz_uint16 m_version_made_by; 340 mz_uint16 m_version_needed; 341 mz_uint16 m_bit_flag; 342 mz_uint16 m_method; 343 #ifndef MINIZ_NO_TIME 344 time_t m_time; 345 #endif 346 mz_uint32 m_crc32; 347 mz_uint64 m_comp_size; 348 mz_uint64 m_uncomp_size; 349 mz_uint16 m_internal_attr; 350 mz_uint32 m_external_attr; 351 mz_uint64 m_local_header_ofs; 352 mz_uint32 m_comment_size; 353 char m_filename[MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE]; 354 char m_comment[MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE]; 355 } mz_zip_archive_file_stat; 356 357 typedef size_t(*mz_file_read_func)(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n); 358 typedef size_t(*mz_file_write_func)(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n); 359 360 struct mz_zip_internal_state_tag; 361 typedef struct mz_zip_internal_state_tag mz_zip_internal_state; 362 363 typedef enum 364 { 365 MZ_ZIP_MODE_INVALID = 0, 366 MZ_ZIP_MODE_READING = 1, 367 MZ_ZIP_MODE_WRITING = 2, 368 MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3 369 } mz_zip_mode; 370 371 typedef struct 372 { 373 mz_uint64 m_archive_size; 374 mz_uint64 m_central_directory_file_ofs; 375 mz_uint m_total_files; 376 mz_zip_mode m_zip_mode; 377 378 mz_uint m_file_offset_alignment; 379 380 mz_alloc_func m_pAlloc; 381 mz_free_func m_pFree; 382 mz_realloc_func m_pRealloc; 383 void *m_pAlloc_opaque; 384 385 mz_file_read_func m_pRead; 386 mz_file_write_func m_pWrite; 387 void *m_pIO_opaque; 388 389 mz_zip_internal_state *m_pState; 390 391 } mz_zip_archive; 392 393 typedef enum 394 { 395 MZ_ZIP_FLAG_CASE_SENSITIVE = 0x0100, 396 MZ_ZIP_FLAG_IGNORE_PATH = 0x0200, 397 MZ_ZIP_FLAG_COMPRESSED_DATA = 0x0400, 398 MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY = 0x0800 399 } mz_zip_flags; 400 401 // ZIP archive reading 402 403 // Inits a ZIP archive reader. 404 // These functions read and validate the archive's central directory. 405 mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, mz_uint32 flags); 406 mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, size_t size, mz_uint32 flags); 407 408 #ifndef MINIZ_NO_STDIO 409 mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint32 flags); 410 #endif 411 412 // Returns the total number of files in the archive. 413 mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip); 414 415 // Returns detailed information about an archive file entry. 416 mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, mz_zip_archive_file_stat *pStat); 417 418 // Determines if an archive file entry is a directory entry. 419 mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, mz_uint file_index); 420 mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, mz_uint file_index); 421 422 // Retrieves the filename of an archive file entry. 423 // 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. 424 mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, char *pFilename, mz_uint filename_buf_size); 425 426 // Attempts to locates a file in the archive's central directory. 427 // Valid flags: MZ_ZIP_FLAG_CASE_SENSITIVE, MZ_ZIP_FLAG_IGNORE_PATH 428 // Returns -1 if the file cannot be found. 429 int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags); 430 431 // Extracts a archive file to a memory buffer using no memory allocation. 432 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); 433 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); 434 435 // Extracts a archive file to a memory buffer. 436 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); 437 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); 438 439 // Extracts a archive file to a dynamically allocated heap buffer. 440 void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, size_t *pSize, mz_uint flags); 441 void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, const char *pFilename, size_t *pSize, mz_uint flags); 442 443 // Extracts a archive file using a callback function to output the file's data. 444 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); 445 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); 446 447 #ifndef MINIZ_NO_STDIO 448 // Extracts a archive file to a disk file and sets its last accessed and modified times. 449 // This function only extracts files, not archive directory records. 450 mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, const char *pDst_filename, mz_uint flags); 451 mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, mz_uint flags); 452 #endif 453 454 // Ends archive reading, freeing all allocations, and closing the input archive file if mz_zip_reader_init_file() was used. 455 mz_bool mz_zip_reader_end(mz_zip_archive *pZip); 456 457 // ZIP archive writing 458 459 #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS 460 461 // Inits a ZIP archive writer. 462 mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size); 463 mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size); 464 465 #ifndef MINIZ_NO_STDIO 466 mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning); 467 #endif 468 469 // Converts a ZIP archive reader object into a writer object, to allow efficient in-place file appends to occur on an existing archive. 470 // 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. 471 // 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). 472 // Finally, for archives opened using mz_zip_reader_init, the mz_zip_archive's user provided m_pWrite function cannot be NULL. 473 // Note: In-place archive modification is not recommended unless you know what you're doing, because if execution stops or something goes wrong before 474 // the archive is finalized the file's central directory will be hosed. 475 mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, const char *pFilename); 476 477 // Adds the contents of a memory buffer to an archive. These functions record the current local time into the archive. 478 // To add a directory entry, call this method with an archive name ending in a forwardslash with empty buffer. 479 // 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. 480 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); 481 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); 482 483 #ifndef MINIZ_NO_STDIO 484 // Adds the contents of a disk file to an archive. This function also records the disk file's modified time into the archive. 485 // 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. 486 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); 487 #endif 488 489 // Adds a file to an archive by fully cloning the data from another archive. 490 // This function fully clones the source file's compressed data (no recompression), along with its full filename, extra data, and comment fields. 491 mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *pSource_zip, mz_uint file_index); 492 493 // Finalizes the archive by writing the central directory records followed by the end of central directory record. 494 // After an archive is finalized, the only valid call on the mz_zip_archive struct is mz_zip_writer_end(). 495 // An archive must be manually finalized by calling this function for it to be valid. 496 mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip); 497 mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **pBuf, size_t *pSize); 498 499 // Ends archive writing, freeing all allocations, and closing the output file if mz_zip_writer_init_file() was used. 500 // Note for the archive to be valid, it must have been finalized before ending. 501 mz_bool mz_zip_writer_end(mz_zip_archive *pZip); 502 503 // Misc. high-level helper functions: 504 505 // mz_zip_add_mem_to_archive_file_in_place() efficiently (but not atomically) appends a memory blob to a ZIP archive. 506 // 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. 507 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); 508 509 // Reads a single file from an archive into a heap block. 510 // Returns NULL on failure. 511 void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint zip_flags); 512 513 #endif // #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS 514 515 #endif // #ifndef MINIZ_NO_ARCHIVE_APIS 516 517 // ------------------- Low-level Decompression API Definitions 518 519 // Decompression flags used by tinfl_decompress(). 520 // 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. 521 // 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. 522 // 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). 523 // TINFL_FLAG_COMPUTE_ADLER32: Force adler-32 checksum computation of the decompressed bytes. 524 enum 525 { 526 TINFL_FLAG_PARSE_ZLIB_HEADER = 1, 527 TINFL_FLAG_HAS_MORE_INPUT = 2, 528 TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF = 4, 529 TINFL_FLAG_COMPUTE_ADLER32 = 8 530 }; 531 532 // High level decompression functions: 533 // tinfl_decompress_mem_to_heap() decompresses a block in memory to a heap block allocated via malloc(). 534 // On entry: 535 // pSrc_buf, src_buf_len: Pointer and size of the Deflate or zlib source data to decompress. 536 // On return: 537 // Function returns a pointer to the decompressed data, or NULL on failure. 538 // *pOut_len will be set to the decompressed data's size, which could be larger than src_buf_len on uncompressible data. 539 // The caller must call mz_free() on the returned block when it's no longer needed. 540 void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags); 541 542 // tinfl_decompress_mem_to_mem() decompresses a block in memory to another block in memory. 543 // Returns TINFL_DECOMPRESS_MEM_TO_MEM_FAILED on failure, or the number of bytes written on success. 544 #define TINFL_DECOMPRESS_MEM_TO_MEM_FAILED ((size_t)(-1)) 545 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); 546 547 // 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. 548 // Returns 1 on success or 0 on failure. 549 typedef int(*tinfl_put_buf_func_ptr)(const void* pBuf, int len, void *pUser); 550 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); 551 552 struct tinfl_decompressor_tag; typedef struct tinfl_decompressor_tag tinfl_decompressor; 553 554 // Max size of LZ dictionary. 555 #define TINFL_LZ_DICT_SIZE 32768 556 557 // Return status. 558 typedef enum 559 { 560 TINFL_STATUS_BAD_PARAM = -3, 561 TINFL_STATUS_ADLER32_MISMATCH = -2, 562 TINFL_STATUS_FAILED = -1, 563 TINFL_STATUS_DONE = 0, 564 TINFL_STATUS_NEEDS_MORE_INPUT = 1, 565 TINFL_STATUS_HAS_MORE_OUTPUT = 2 566 } tinfl_status; 567 568 // Initializes the decompressor to its initial state. 569 #define tinfl_init(r) do { (r)->m_state = 0; } MZ_MACRO_END 570 #define tinfl_get_adler32(r) (r)->m_check_adler32 571 572 // 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. 573 // 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. 574 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); 575 576 // Internal/private bits follow. 577 enum 578 { 579 TINFL_MAX_HUFF_TABLES = 3, TINFL_MAX_HUFF_SYMBOLS_0 = 288, TINFL_MAX_HUFF_SYMBOLS_1 = 32, TINFL_MAX_HUFF_SYMBOLS_2 = 19, 580 TINFL_FAST_LOOKUP_BITS = 10, TINFL_FAST_LOOKUP_SIZE = 1 << TINFL_FAST_LOOKUP_BITS 581 }; 582 583 typedef struct 584 { 585 mz_uint8 m_code_size[TINFL_MAX_HUFF_SYMBOLS_0]; 586 mz_int16 m_look_up[TINFL_FAST_LOOKUP_SIZE], m_tree[TINFL_MAX_HUFF_SYMBOLS_0 * 2]; 587 } tinfl_huff_table; 588 589 #if MINIZ_HAS_64BIT_REGISTERS 590 #define TINFL_USE_64BIT_BITBUF 1 591 #endif 592 593 #if TINFL_USE_64BIT_BITBUF 594 typedef mz_uint64 tinfl_bit_buf_t; 595 #define TINFL_BITBUF_SIZE (64) 596 #else 597 typedef mz_uint32 tinfl_bit_buf_t; 598 #define TINFL_BITBUF_SIZE (32) 599 #endif 600 601 struct tinfl_decompressor_tag 602 { 603 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]; 604 tinfl_bit_buf_t m_bit_buf; 605 size_t m_dist_from_out_buf_start; 606 tinfl_huff_table m_tables[TINFL_MAX_HUFF_TABLES]; 607 mz_uint8 m_raw_header[4], m_len_codes[TINFL_MAX_HUFF_SYMBOLS_0 + TINFL_MAX_HUFF_SYMBOLS_1 + 137]; 608 }; 609 610 // ------------------- Low-level Compression API Definitions 611 612 // Set TDEFL_LESS_MEMORY to 1 to use less memory (compression will be slightly slower, and raw/dynamic blocks will be output more frequently). 613 #define TDEFL_LESS_MEMORY 0 614 615 // tdefl_init() compression flags logically OR'd together (low 12 bits contain the max. number of probes per dictionary search): 616 // 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). 617 enum 618 { 619 TDEFL_HUFFMAN_ONLY = 0, TDEFL_DEFAULT_MAX_PROBES = 128, TDEFL_MAX_PROBES_MASK = 0xFFF 620 }; 621 622 // 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. 623 // TDEFL_COMPUTE_ADLER32: Always compute the adler-32 of the input data (even when not writing zlib headers). 624 // TDEFL_GREEDY_PARSING_FLAG: Set to use faster greedy parsing, instead of more efficient lazy parsing. 625 // 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). 626 // TDEFL_RLE_MATCHES: Only look for RLE matches (matches with a distance of 1) 627 // TDEFL_FILTER_MATCHES: Discards matches <= 5 chars if enabled. 628 // TDEFL_FORCE_ALL_STATIC_BLOCKS: Disable usage of optimized Huffman tables. 629 // TDEFL_FORCE_ALL_RAW_BLOCKS: Only use raw (uncompressed) deflate blocks. 630 enum 631 { 632 TDEFL_WRITE_ZLIB_HEADER = 0x01000, 633 TDEFL_COMPUTE_ADLER32 = 0x02000, 634 TDEFL_GREEDY_PARSING_FLAG = 0x04000, 635 TDEFL_NONDETERMINISTIC_PARSING_FLAG = 0x08000, 636 TDEFL_RLE_MATCHES = 0x10000, 637 TDEFL_FILTER_MATCHES = 0x20000, 638 TDEFL_FORCE_ALL_STATIC_BLOCKS = 0x40000, 639 TDEFL_FORCE_ALL_RAW_BLOCKS = 0x80000 640 }; 641 642 // High level compression functions: 643 // tdefl_compress_mem_to_heap() compresses a block in memory to a heap block allocated via malloc(). 644 // On entry: 645 // pSrc_buf, src_buf_len: Pointer and size of source block to compress. 646 // flags: The max match finder probes (default is 128) logically OR'd against the above flags. Higher probes are slower but improve compression. 647 // On return: 648 // Function returns a pointer to the compressed data, or NULL on failure. 649 // *pOut_len will be set to the compressed data's size, which could be larger than src_buf_len on uncompressible data. 650 // The caller must free() the returned block when it's no longer needed. 651 void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags); 652 653 // tdefl_compress_mem_to_mem() compresses a block in memory to another block in memory. 654 // Returns 0 on failure. 655 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); 656 657 // Compresses an image to a compressed PNG file in memory. 658 // On entry: 659 // pImage, w, h, and num_chans describe the image to compress. num_chans may be 1, 2, 3, or 4. 660 // The image pitch in bytes per scanline will be w*num_chans. The leftmost pixel on the top scanline is stored first in memory. 661 // On return: 662 // Function returns a pointer to the compressed data, or NULL on failure. 663 // *pLen_out will be set to the size of the PNG image file. 664 // The caller must mz_free() the returned heap block (which will typically be larger than *pLen_out) when it's no longer needed. 665 void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out); 666 667 // Output stream interface. The compressor uses this interface to write compressed data. It'll typically be called TDEFL_OUT_BUF_SIZE at a time. 668 typedef mz_bool(*tdefl_put_buf_func_ptr)(const void* pBuf, int len, void *pUser); 669 670 // tdefl_compress_mem_to_output() compresses a block to an output stream. The above helpers use this function internally. 671 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); 672 673 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 }; 674 675 // TDEFL_OUT_BUF_SIZE MUST be large enough to hold a single entire compressed output block (using static/fixed Huffman codes). 676 #if TDEFL_LESS_MEMORY 677 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 }; 678 #else 679 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 }; 680 #endif 681 682 // 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. 683 typedef enum 684 { 685 TDEFL_STATUS_BAD_PARAM = -2, 686 TDEFL_STATUS_PUT_BUF_FAILED = -1, 687 TDEFL_STATUS_OKAY = 0, 688 TDEFL_STATUS_DONE = 1, 689 } tdefl_status; 690 691 // Must map to MZ_NO_FLUSH, MZ_SYNC_FLUSH, etc. enums 692 typedef enum 693 { 694 TDEFL_NO_FLUSH = 0, 695 TDEFL_SYNC_FLUSH = 2, 696 TDEFL_FULL_FLUSH = 3, 697 TDEFL_FINISH = 4 698 } tdefl_flush; 699 700 // tdefl's compression state structure. 701 typedef struct 702 { 703 tdefl_put_buf_func_ptr m_pPut_buf_func; 704 void *m_pPut_buf_user; 705 mz_uint m_flags, m_max_probes[2]; 706 int m_greedy_parsing; 707 mz_uint m_adler32, m_lookahead_pos, m_lookahead_size, m_dict_size; 708 mz_uint8 *m_pLZ_code_buf, *m_pLZ_flags, *m_pOutput_buf, *m_pOutput_buf_end; 709 mz_uint m_num_flags_left, m_total_lz_bytes, m_lz_code_buf_dict_pos, m_bits_in, m_bit_buffer; 710 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; 711 tdefl_status m_prev_return_status; 712 const void *m_pIn_buf; 713 void *m_pOut_buf; 714 size_t *m_pIn_buf_size, *m_pOut_buf_size; 715 tdefl_flush m_flush; 716 const mz_uint8 *m_pSrc; 717 size_t m_src_buf_left, m_out_buf_ofs; 718 mz_uint8 m_dict[TDEFL_LZ_DICT_SIZE + TDEFL_MAX_MATCH_LEN - 1]; 719 mz_uint16 m_huff_count[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; 720 mz_uint16 m_huff_codes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; 721 mz_uint8 m_huff_code_sizes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; 722 mz_uint8 m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE]; 723 mz_uint16 m_next[TDEFL_LZ_DICT_SIZE]; 724 mz_uint16 m_hash[TDEFL_LZ_HASH_SIZE]; 725 mz_uint8 m_output_buf[TDEFL_OUT_BUF_SIZE]; 726 } tdefl_compressor; 727 728 // Initializes the compressor. 729 // There is no corresponding deinit() function because the tdefl API's do not dynamically allocate memory. 730 // 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. 731 // If pBut_buf_func is NULL the user should always call the tdefl_compress() API. 732 // flags: See the above enums (TDEFL_HUFFMAN_ONLY, TDEFL_WRITE_ZLIB_HEADER, etc.) 733 tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags); 734 735 // 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. 736 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); 737 738 // tdefl_compress_buffer() is only usable when the tdefl_init() is called with a non-NULL tdefl_put_buf_func_ptr. 739 // tdefl_compress_buffer() always consumes the entire input buffer. 740 tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, tdefl_flush flush); 741 742 tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d); 743 mz_uint32 tdefl_get_adler32(tdefl_compressor *d); 744 745 // 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. 746 #ifndef MINIZ_NO_ZLIB_APIS 747 // Create tdefl_compress() flags given zlib-style compression parameters. 748 // level may range from [0,10] (where 10 is absolute max compression, but may be much slower on some files) 749 // window_bits may be -15 (raw deflate) or 15 (zlib) 750 // strategy may be either MZ_DEFAULT_STRATEGY, MZ_FILTERED, MZ_HUFFMAN_ONLY, MZ_RLE, or MZ_FIXED 751 mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy); 752 #endif // #ifndef MINIZ_NO_ZLIB_APIS 753 754 #ifdef __cplusplus 755 } 756 #endif 757 758 #endif // MINIZ_HEADER_INCLUDED 759