reactos/drivers/lib/zlib/contrib/delphi/zlibdef.pas

   1 unit zlibdef;
   2
   3 interface
   4
   5 uses
   6   Windows;
   7
   8 const
   9   ZLIB_VERSION = '1.1.3';
  10
  11 type
  12   voidpf = Pointer;
  13   int    = Integer;
  14   uInt   = Cardinal;
  15   pBytef = PChar;
  16   uLong  = Cardinal;
  17
  18   alloc_func = function(opaque: voidpf; items, size: uInt): voidpf;
  19                     stdcall;
  20   free_func  = procedure(opaque, address: voidpf);
  21                     stdcall;
  22
  23   internal_state = Pointer;
  24
  25   z_streamp = ^z_stream;
  26   z_stream = packed record
  27     next_in: pBytef;          // next input byte
  28     avail_in: uInt;           // number of bytes available at next_in
  29     total_in: uLong;          // total nb of input bytes read so far
  30
  31     next_out: pBytef;         // next output byte should be put there
  32     avail_out: uInt;          // remaining free space at next_out
  33     total_out: uLong;         // total nb of bytes output so far
  34
  35     msg: PChar;               // last error message, NULL if no error
  36     state: internal_state;    // not visible by applications
  37
  38     zalloc: alloc_func;       // used to allocate the internal state
  39     zfree: free_func;         // used to free the internal state
  40     opaque: voidpf;           // private data object passed to zalloc and zfree
  41
  42     data_type: int;           // best guess about the data type: ascii or binary
  43     adler: uLong;             // adler32 value of the uncompressed data
  44     reserved: uLong;          // reserved for future use
  45     end;
  46
  47 const
  48   Z_NO_FLUSH      = 0;
  49   Z_SYNC_FLUSH    = 2;
  50   Z_FULL_FLUSH    = 3;
  51   Z_FINISH        = 4;
  52
  53   Z_OK            = 0;
  54   Z_STREAM_END    = 1;
  55
  56   Z_NO_COMPRESSION         =  0;
  57   Z_BEST_SPEED             =  1;
  58   Z_BEST_COMPRESSION       =  9;
  59   Z_DEFAULT_COMPRESSION    = -1;
  60
  61   Z_FILTERED            = 1;
  62   Z_HUFFMAN_ONLY        = 2;
  63   Z_DEFAULT_STRATEGY    = 0;
  64
  65   Z_BINARY   = 0;
  66   Z_ASCII    = 1;
  67   Z_UNKNOWN  = 2;
  68
  69   Z_DEFLATED    = 8;
  70
  71   MAX_MEM_LEVEL = 9;
  72
  73 function adler32(adler: uLong; const buf: pBytef; len: uInt): uLong;
  74              stdcall;
  75 function crc32(crc: uLong; const buf: pBytef; len: uInt): uLong;
  76              stdcall;
  77 function deflate(strm: z_streamp; flush: int): int;
  78              stdcall;
  79 function deflateCopy(dest, source: z_streamp): int;
  80              stdcall;
  81 function deflateEnd(strm: z_streamp): int;
  82              stdcall;
  83 function deflateInit2_(strm: z_streamp; level, method,
  84                        windowBits, memLevel, strategy: int;
  85                        const version: PChar; stream_size: int): int;
  86              stdcall;
  87 function deflateInit_(strm: z_streamp; level: int;
  88                       const version: PChar; stream_size: int): int;
  89              stdcall;
  90 function deflateParams(strm: z_streamp; level, strategy: int): int;
  91              stdcall;
  92 function deflateReset(strm: z_streamp): int;
  93              stdcall;
  94 function deflateSetDictionary(strm: z_streamp;
  95                               const dictionary: pBytef;
  96                               dictLength: uInt): int;
  97              stdcall;
  98 function inflate(strm: z_streamp; flush: int): int;
  99              stdcall;
 100 function inflateEnd(strm: z_streamp): int;
 101              stdcall;
 102 function inflateInit2_(strm: z_streamp; windowBits: int;
 103                        const version: PChar; stream_size: int): int;
 104              stdcall;
 105 function inflateInit_(strm: z_streamp; const version: PChar;
 106                       stream_size: int): int;
 107              stdcall;
 108 function inflateReset(strm: z_streamp): int;
 109              stdcall;
 110 function inflateSetDictionary(strm: z_streamp;
 111                               const dictionary: pBytef;
 112                               dictLength: uInt): int;
 113              stdcall;
 114 function inflateSync(strm: z_streamp): int;
 115              stdcall;
 116
 117 function deflateInit(strm: z_streamp; level: int): int;
 118 function deflateInit2(strm: z_streamp; level, method, windowBits,
 119                       memLevel, strategy: int): int;
 120 function inflateInit(strm: z_streamp): int;
 121 function inflateInit2(strm: z_streamp; windowBits: int): int;
 122
 123 implementation
 124
 125 function deflateInit(strm: z_streamp; level: int): int;
 126 begin
 127   Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream));
 128 end;
 129
 130 function deflateInit2(strm: z_streamp; level, method, windowBits,
 131                       memLevel, strategy: int): int;
 132 begin
 133   Result := deflateInit2_(strm, level, method, windowBits, memLevel,
 134                           strategy, ZLIB_VERSION, sizeof(z_stream));
 135 end;
 136
 137 function inflateInit(strm: z_streamp): int;
 138 begin
 139   Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream));
 140 end;
 141
 142 function inflateInit2(strm: z_streamp; windowBits: int): int;
 143 begin
 144   Result := inflateInit2_(strm, windowBits, ZLIB_VERSION,
 145                           sizeof(z_stream));
 146 end;
 147
 148 const
 149   zlibDLL = 'png32bd.dll';
 150
 151 function adler32; external zlibDLL;
 152 function crc32; external zlibDLL;
 153 function deflate; external zlibDLL;
 154 function deflateCopy; external zlibDLL;
 155 function deflateEnd; external zlibDLL;
 156 function deflateInit2_; external zlibDLL;
 157 function deflateInit_; external zlibDLL;
 158 function deflateParams; external zlibDLL;
 159 function deflateReset; external zlibDLL;
 160 function deflateSetDictionary; external zlibDLL;
 161 function inflate; external zlibDLL;
 162 function inflateEnd; external zlibDLL;
 163 function inflateInit2_; external zlibDLL;
 164 function inflateInit_; external zlibDLL;
 165 function inflateReset; external zlibDLL;
 166 function inflateSetDictionary; external zlibDLL;
 167 function inflateSync; external zlibDLL;
 168
 169 end.