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-rw-r--r--zlib/contrib/pascal/zlibpas.pas276
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diff --git a/zlib/contrib/pascal/zlibpas.pas b/zlib/contrib/pascal/zlibpas.pas
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index a0dff11..0000000
--- a/zlib/contrib/pascal/zlibpas.pas
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-(* zlibpas -- Pascal interface to the zlib data compression library
- *
- * Copyright (C) 2003 Cosmin Truta.
- * Derived from original sources by Bob Dellaca.
- * For conditions of distribution and use, see copyright notice in readme.txt
- *)
-
-unit zlibpas;
-
-interface
-
-const
- ZLIB_VERSION = '1.2.11';
- ZLIB_VERNUM = $12a0;
-
-type
- alloc_func = function(opaque: Pointer; items, size: Integer): Pointer;
- cdecl;
- free_func = procedure(opaque, address: Pointer);
- cdecl;
-
- in_func = function(opaque: Pointer; var buf: PByte): Integer;
- cdecl;
- out_func = function(opaque: Pointer; buf: PByte; size: Integer): Integer;
- cdecl;
-
- z_streamp = ^z_stream;
- z_stream = packed record
- next_in: PChar; (* next input byte *)
- avail_in: Integer; (* number of bytes available at next_in *)
- total_in: LongInt; (* total nb of input bytes read so far *)
-
- next_out: PChar; (* next output byte should be put there *)
- avail_out: Integer; (* remaining free space at next_out *)
- total_out: LongInt; (* total nb of bytes output so far *)
-
- msg: PChar; (* last error message, NULL if no error *)
- state: Pointer; (* not visible by applications *)
-
- zalloc: alloc_func; (* used to allocate the internal state *)
- zfree: free_func; (* used to free the internal state *)
- opaque: Pointer; (* private data object passed to zalloc and zfree *)
-
- data_type: Integer; (* best guess about the data type: ascii or binary *)
- adler: LongInt; (* adler32 value of the uncompressed data *)
- reserved: LongInt; (* reserved for future use *)
- end;
-
- gz_headerp = ^gz_header;
- gz_header = packed record
- text: Integer; (* true if compressed data believed to be text *)
- time: LongInt; (* modification time *)
- xflags: Integer; (* extra flags (not used when writing a gzip file) *)
- os: Integer; (* operating system *)
- extra: PChar; (* pointer to extra field or Z_NULL if none *)
- extra_len: Integer; (* extra field length (valid if extra != Z_NULL) *)
- extra_max: Integer; (* space at extra (only when reading header) *)
- name: PChar; (* pointer to zero-terminated file name or Z_NULL *)
- name_max: Integer; (* space at name (only when reading header) *)
- comment: PChar; (* pointer to zero-terminated comment or Z_NULL *)
- comm_max: Integer; (* space at comment (only when reading header) *)
- hcrc: Integer; (* true if there was or will be a header crc *)
- done: Integer; (* true when done reading gzip header *)
- end;
-
-(* constants *)
-const
- Z_NO_FLUSH = 0;
- Z_PARTIAL_FLUSH = 1;
- Z_SYNC_FLUSH = 2;
- Z_FULL_FLUSH = 3;
- Z_FINISH = 4;
- Z_BLOCK = 5;
- Z_TREES = 6;
-
- Z_OK = 0;
- Z_STREAM_END = 1;
- Z_NEED_DICT = 2;
- Z_ERRNO = -1;
- Z_STREAM_ERROR = -2;
- Z_DATA_ERROR = -3;
- Z_MEM_ERROR = -4;
- Z_BUF_ERROR = -5;
- Z_VERSION_ERROR = -6;
-
- Z_NO_COMPRESSION = 0;
- Z_BEST_SPEED = 1;
- Z_BEST_COMPRESSION = 9;
- Z_DEFAULT_COMPRESSION = -1;
-
- Z_FILTERED = 1;
- Z_HUFFMAN_ONLY = 2;
- Z_RLE = 3;
- Z_FIXED = 4;
- Z_DEFAULT_STRATEGY = 0;
-
- Z_BINARY = 0;
- Z_TEXT = 1;
- Z_ASCII = 1;
- Z_UNKNOWN = 2;
-
- Z_DEFLATED = 8;
-
-(* basic functions *)
-function zlibVersion: PChar;
-function deflateInit(var strm: z_stream; level: Integer): Integer;
-function deflate(var strm: z_stream; flush: Integer): Integer;
-function deflateEnd(var strm: z_stream): Integer;
-function inflateInit(var strm: z_stream): Integer;
-function inflate(var strm: z_stream; flush: Integer): Integer;
-function inflateEnd(var strm: z_stream): Integer;
-
-(* advanced functions *)
-function deflateInit2(var strm: z_stream; level, method, windowBits,
- memLevel, strategy: Integer): Integer;
-function deflateSetDictionary(var strm: z_stream; const dictionary: PChar;
- dictLength: Integer): Integer;
-function deflateCopy(var dest, source: z_stream): Integer;
-function deflateReset(var strm: z_stream): Integer;
-function deflateParams(var strm: z_stream; level, strategy: Integer): Integer;
-function deflateTune(var strm: z_stream; good_length, max_lazy, nice_length, max_chain: Integer): Integer;
-function deflateBound(var strm: z_stream; sourceLen: LongInt): LongInt;
-function deflatePending(var strm: z_stream; var pending: Integer; var bits: Integer): Integer;
-function deflatePrime(var strm: z_stream; bits, value: Integer): Integer;
-function deflateSetHeader(var strm: z_stream; head: gz_header): Integer;
-function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
-function inflateSetDictionary(var strm: z_stream; const dictionary: PChar;
- dictLength: Integer): Integer;
-function inflateSync(var strm: z_stream): Integer;
-function inflateCopy(var dest, source: z_stream): Integer;
-function inflateReset(var strm: z_stream): Integer;
-function inflateReset2(var strm: z_stream; windowBits: Integer): Integer;
-function inflatePrime(var strm: z_stream; bits, value: Integer): Integer;
-function inflateMark(var strm: z_stream): LongInt;
-function inflateGetHeader(var strm: z_stream; var head: gz_header): Integer;
-function inflateBackInit(var strm: z_stream;
- windowBits: Integer; window: PChar): Integer;
-function inflateBack(var strm: z_stream; in_fn: in_func; in_desc: Pointer;
- out_fn: out_func; out_desc: Pointer): Integer;
-function inflateBackEnd(var strm: z_stream): Integer;
-function zlibCompileFlags: LongInt;
-
-(* utility functions *)
-function compress(dest: PChar; var destLen: LongInt;
- const source: PChar; sourceLen: LongInt): Integer;
-function compress2(dest: PChar; var destLen: LongInt;
- const source: PChar; sourceLen: LongInt;
- level: Integer): Integer;
-function compressBound(sourceLen: LongInt): LongInt;
-function uncompress(dest: PChar; var destLen: LongInt;
- const source: PChar; sourceLen: LongInt): Integer;
-
-(* checksum functions *)
-function adler32(adler: LongInt; const buf: PChar; len: Integer): LongInt;
-function adler32_combine(adler1, adler2, len2: LongInt): LongInt;
-function crc32(crc: LongInt; const buf: PChar; len: Integer): LongInt;
-function crc32_combine(crc1, crc2, len2: LongInt): LongInt;
-
-(* various hacks, don't look :) *)
-function deflateInit_(var strm: z_stream; level: Integer;
- const version: PChar; stream_size: Integer): Integer;
-function inflateInit_(var strm: z_stream; const version: PChar;
- stream_size: Integer): Integer;
-function deflateInit2_(var strm: z_stream;
- level, method, windowBits, memLevel, strategy: Integer;
- const version: PChar; stream_size: Integer): Integer;
-function inflateInit2_(var strm: z_stream; windowBits: Integer;
- const version: PChar; stream_size: Integer): Integer;
-function inflateBackInit_(var strm: z_stream;
- windowBits: Integer; window: PChar;
- const version: PChar; stream_size: Integer): Integer;
-
-
-implementation
-
-{$L adler32.obj}
-{$L compress.obj}
-{$L crc32.obj}
-{$L deflate.obj}
-{$L infback.obj}
-{$L inffast.obj}
-{$L inflate.obj}
-{$L inftrees.obj}
-{$L trees.obj}
-{$L uncompr.obj}
-{$L zutil.obj}
-
-function adler32; external;
-function adler32_combine; external;
-function compress; external;
-function compress2; external;
-function compressBound; external;
-function crc32; external;
-function crc32_combine; external;
-function deflate; external;
-function deflateBound; external;
-function deflateCopy; external;
-function deflateEnd; external;
-function deflateInit_; external;
-function deflateInit2_; external;
-function deflateParams; external;
-function deflatePending; external;
-function deflatePrime; external;
-function deflateReset; external;
-function deflateSetDictionary; external;
-function deflateSetHeader; external;
-function deflateTune; external;
-function inflate; external;
-function inflateBack; external;
-function inflateBackEnd; external;
-function inflateBackInit_; external;
-function inflateCopy; external;
-function inflateEnd; external;
-function inflateGetHeader; external;
-function inflateInit_; external;
-function inflateInit2_; external;
-function inflateMark; external;
-function inflatePrime; external;
-function inflateReset; external;
-function inflateReset2; external;
-function inflateSetDictionary; external;
-function inflateSync; external;
-function uncompress; external;
-function zlibCompileFlags; external;
-function zlibVersion; external;
-
-function deflateInit(var strm: z_stream; level: Integer): Integer;
-begin
- Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function deflateInit2(var strm: z_stream; level, method, windowBits, memLevel,
- strategy: Integer): Integer;
-begin
- Result := deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
- ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateInit(var strm: z_stream): Integer;
-begin
- Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
-begin
- Result := inflateInit2_(strm, windowBits, ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function inflateBackInit(var strm: z_stream;
- windowBits: Integer; window: PChar): Integer;
-begin
- Result := inflateBackInit_(strm, windowBits, window,
- ZLIB_VERSION, sizeof(z_stream));
-end;
-
-function _malloc(Size: Integer): Pointer; cdecl;
-begin
- GetMem(Result, Size);
-end;
-
-procedure _free(Block: Pointer); cdecl;
-begin
- FreeMem(Block);
-end;
-
-procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl;
-begin
- FillChar(P^, count, B);
-end;
-
-procedure _memcpy(dest, source: Pointer; count: Integer); cdecl;
-begin
- Move(source^, dest^, count);
-end;
-
-end.
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