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---------------------------------------------------------------- |
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-- ZLib for Ada thick binding. -- |
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-- -- |
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-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- |
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-- -- |
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-- Open source license information is in the zlib.ads file. -- |
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---------------------------------------------------------------- |
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|
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-- $Id: zlib-thin.ads,v 1.11 2004/07/23 06:33:11 vagul Exp $ |
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|
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with Interfaces.C.Strings; |
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|
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with System; |
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|
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private package ZLib.Thin is |
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|
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-- From zconf.h |
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|
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MAX_MEM_LEVEL : constant := 9; -- zconf.h:105 |
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-- zconf.h:105 |
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MAX_WBITS : constant := 15; -- zconf.h:115 |
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-- 32K LZ77 window |
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-- zconf.h:115 |
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SEEK_SET : constant := 8#0000#; -- zconf.h:244 |
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-- Seek from beginning of file. |
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-- zconf.h:244 |
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SEEK_CUR : constant := 1; -- zconf.h:245 |
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-- Seek from current position. |
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-- zconf.h:245 |
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SEEK_END : constant := 2; -- zconf.h:246 |
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-- Set file pointer to EOF plus "offset" |
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-- zconf.h:246 |
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|
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type Byte is new Interfaces.C.unsigned_char; -- 8 bits |
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-- zconf.h:214 |
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type UInt is new Interfaces.C.unsigned; -- 16 bits or more |
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-- zconf.h:216 |
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type Int is new Interfaces.C.int; |
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|
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type ULong is new Interfaces.C.unsigned_long; -- 32 bits or more |
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-- zconf.h:217 |
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subtype Chars_Ptr is Interfaces.C.Strings.chars_ptr; |
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|
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type ULong_Access is access ULong; |
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type Int_Access is access Int; |
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|
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subtype Voidp is System.Address; -- zconf.h:232 |
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|
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subtype Byte_Access is Voidp; |
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|
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Nul : constant Voidp := System.Null_Address; |
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-- end from zconf |
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|
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Z_NO_FLUSH : constant := 8#0000#; -- zlib.h:125 |
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-- zlib.h:125 |
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Z_PARTIAL_FLUSH : constant := 1; -- zlib.h:126 |
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-- will be removed, use |
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-- Z_SYNC_FLUSH instead |
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-- zlib.h:126 |
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Z_SYNC_FLUSH : constant := 2; -- zlib.h:127 |
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-- zlib.h:127 |
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Z_FULL_FLUSH : constant := 3; -- zlib.h:128 |
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-- zlib.h:128 |
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Z_FINISH : constant := 4; -- zlib.h:129 |
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-- zlib.h:129 |
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Z_OK : constant := 8#0000#; -- zlib.h:132 |
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-- zlib.h:132 |
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Z_STREAM_END : constant := 1; -- zlib.h:133 |
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-- zlib.h:133 |
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Z_NEED_DICT : constant := 2; -- zlib.h:134 |
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-- zlib.h:134 |
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Z_ERRNO : constant := -1; -- zlib.h:135 |
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-- zlib.h:135 |
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Z_STREAM_ERROR : constant := -2; -- zlib.h:136 |
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-- zlib.h:136 |
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Z_DATA_ERROR : constant := -3; -- zlib.h:137 |
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-- zlib.h:137 |
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Z_MEM_ERROR : constant := -4; -- zlib.h:138 |
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-- zlib.h:138 |
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Z_BUF_ERROR : constant := -5; -- zlib.h:139 |
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-- zlib.h:139 |
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Z_VERSION_ERROR : constant := -6; -- zlib.h:140 |
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-- zlib.h:140 |
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Z_NO_COMPRESSION : constant := 8#0000#; -- zlib.h:145 |
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-- zlib.h:145 |
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Z_BEST_SPEED : constant := 1; -- zlib.h:146 |
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-- zlib.h:146 |
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Z_BEST_COMPRESSION : constant := 9; -- zlib.h:147 |
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-- zlib.h:147 |
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Z_DEFAULT_COMPRESSION : constant := -1; -- zlib.h:148 |
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-- zlib.h:148 |
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Z_FILTERED : constant := 1; -- zlib.h:151 |
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-- zlib.h:151 |
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Z_HUFFMAN_ONLY : constant := 2; -- zlib.h:152 |
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-- zlib.h:152 |
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Z_DEFAULT_STRATEGY : constant := 8#0000#; -- zlib.h:153 |
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-- zlib.h:153 |
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Z_BINARY : constant := 8#0000#; -- zlib.h:156 |
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-- zlib.h:156 |
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Z_ASCII : constant := 1; -- zlib.h:157 |
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-- zlib.h:157 |
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Z_UNKNOWN : constant := 2; -- zlib.h:158 |
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-- zlib.h:158 |
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Z_DEFLATED : constant := 8; -- zlib.h:161 |
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-- zlib.h:161 |
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Z_NULL : constant := 8#0000#; -- zlib.h:164 |
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-- for initializing zalloc, zfree, opaque |
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-- zlib.h:164 |
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type gzFile is new Voidp; -- zlib.h:646 |
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|
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type Z_Stream is private; |
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|
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type Z_Streamp is access all Z_Stream; -- zlib.h:89 |
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|
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type alloc_func is access function |
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(Opaque : Voidp; |
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Items : UInt; |
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Size : UInt) |
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return Voidp; -- zlib.h:63 |
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|
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type free_func is access procedure (opaque : Voidp; address : Voidp); |
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|
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function zlibVersion return Chars_Ptr; |
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|
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function Deflate (strm : Z_Streamp; flush : Int) return Int; |
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|
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function DeflateEnd (strm : Z_Streamp) return Int; |
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|
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function Inflate (strm : Z_Streamp; flush : Int) return Int; |
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|
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function InflateEnd (strm : Z_Streamp) return Int; |
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|
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function deflateSetDictionary |
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(strm : Z_Streamp; |
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dictionary : Byte_Access; |
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dictLength : UInt) |
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return Int; |
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|
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function deflateCopy (dest : Z_Streamp; source : Z_Streamp) return Int; |
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-- zlib.h:478 |
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|
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function deflateReset (strm : Z_Streamp) return Int; -- zlib.h:495 |
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|
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function deflateParams |
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(strm : Z_Streamp; |
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level : Int; |
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strategy : Int) |
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return Int; -- zlib.h:506 |
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|
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function inflateSetDictionary |
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(strm : Z_Streamp; |
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dictionary : Byte_Access; |
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dictLength : UInt) |
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return Int; -- zlib.h:548 |
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|
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function inflateSync (strm : Z_Streamp) return Int; -- zlib.h:565 |
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|
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function inflateReset (strm : Z_Streamp) return Int; -- zlib.h:580 |
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|
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function compress |
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(dest : Byte_Access; |
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destLen : ULong_Access; |
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source : Byte_Access; |
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sourceLen : ULong) |
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return Int; -- zlib.h:601 |
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|
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function compress2 |
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(dest : Byte_Access; |
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destLen : ULong_Access; |
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source : Byte_Access; |
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sourceLen : ULong; |
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level : Int) |
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return Int; -- zlib.h:615 |
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|
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function uncompress |
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(dest : Byte_Access; |
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destLen : ULong_Access; |
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source : Byte_Access; |
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sourceLen : ULong) |
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return Int; |
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|
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function gzopen (path : Chars_Ptr; mode : Chars_Ptr) return gzFile; |
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|
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function gzdopen (fd : Int; mode : Chars_Ptr) return gzFile; |
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|
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function gzsetparams |
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(file : gzFile; |
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level : Int; |
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strategy : Int) |
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return Int; |
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|
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function gzread |
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(file : gzFile; |
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buf : Voidp; |
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len : UInt) |
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return Int; |
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|
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function gzwrite |
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(file : in gzFile; |
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buf : in Voidp; |
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len : in UInt) |
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return Int; |
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|
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function gzprintf (file : in gzFile; format : in Chars_Ptr) return Int; |
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|
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function gzputs (file : in gzFile; s : in Chars_Ptr) return Int; |
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|
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function gzgets |
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(file : gzFile; |
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buf : Chars_Ptr; |
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len : Int) |
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return Chars_Ptr; |
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|
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function gzputc (file : gzFile; char : Int) return Int; |
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|
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function gzgetc (file : gzFile) return Int; |
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|
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function gzflush (file : gzFile; flush : Int) return Int; |
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|
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function gzseek |
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(file : gzFile; |
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offset : Int; |
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whence : Int) |
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return Int; |
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|
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function gzrewind (file : gzFile) return Int; |
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|
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function gztell (file : gzFile) return Int; |
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|
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function gzeof (file : gzFile) return Int; |
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|
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function gzclose (file : gzFile) return Int; |
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|
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function gzerror (file : gzFile; errnum : Int_Access) return Chars_Ptr; |
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|
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function adler32 |
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(adler : ULong; |
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buf : Byte_Access; |
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len : UInt) |
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return ULong; |
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|
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function crc32 |
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(crc : ULong; |
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buf : Byte_Access; |
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len : UInt) |
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return ULong; |
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|
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function deflateInit |
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(strm : Z_Streamp; |
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level : Int; |
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version : Chars_Ptr; |
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stream_size : Int) |
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return Int; |
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|
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function deflateInit2 |
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(strm : Z_Streamp; |
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level : Int; |
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method : Int; |
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windowBits : Int; |
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memLevel : Int; |
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strategy : Int; |
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version : Chars_Ptr; |
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stream_size : Int) |
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return Int; |
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|
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function Deflate_Init |
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(strm : Z_Streamp; |
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level : Int; |
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method : Int; |
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windowBits : Int; |
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memLevel : Int; |
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strategy : Int) |
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return Int; |
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pragma Inline (Deflate_Init); |
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|
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function inflateInit |
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(strm : Z_Streamp; |
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version : Chars_Ptr; |
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stream_size : Int) |
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return Int; |
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|
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function inflateInit2 |
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(strm : in Z_Streamp; |
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windowBits : in Int; |
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version : in Chars_Ptr; |
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stream_size : in Int) |
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return Int; |
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|
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function inflateBackInit |
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(strm : in Z_Streamp; |
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windowBits : in Int; |
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window : in Byte_Access; |
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version : in Chars_Ptr; |
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stream_size : in Int) |
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return Int; |
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-- Size of window have to be 2**windowBits. |
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|
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function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int; |
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pragma Inline (Inflate_Init); |
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|
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function zError (err : Int) return Chars_Ptr; |
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|
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function inflateSyncPoint (z : Z_Streamp) return Int; |
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|
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function get_crc_table return ULong_Access; |
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|
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-- Interface to the available fields of the z_stream structure. |
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-- The application must update next_in and avail_in when avail_in has |
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-- dropped to zero. It must update next_out and avail_out when avail_out |
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-- has dropped to zero. The application must initialize zalloc, zfree and |
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-- opaque before calling the init function. |
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|
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procedure Set_In |
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(Strm : in out Z_Stream; |
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Buffer : in Voidp; |
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Size : in UInt); |
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pragma Inline (Set_In); |
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|
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procedure Set_Out |
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(Strm : in out Z_Stream; |
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Buffer : in Voidp; |
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Size : in UInt); |
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pragma Inline (Set_Out); |
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|
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procedure Set_Mem_Func |
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(Strm : in out Z_Stream; |
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Opaque : in Voidp; |
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Alloc : in alloc_func; |
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Free : in free_func); |
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pragma Inline (Set_Mem_Func); |
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|
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function Last_Error_Message (Strm : in Z_Stream) return String; |
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pragma Inline (Last_Error_Message); |
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|
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function Avail_Out (Strm : in Z_Stream) return UInt; |
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pragma Inline (Avail_Out); |
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|
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function Avail_In (Strm : in Z_Stream) return UInt; |
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pragma Inline (Avail_In); |
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|
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function Total_In (Strm : in Z_Stream) return ULong; |
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pragma Inline (Total_In); |
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|
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function Total_Out (Strm : in Z_Stream) return ULong; |
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pragma Inline (Total_Out); |
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|
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function inflateCopy |
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(dest : in Z_Streamp; |
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Source : in Z_Streamp) |
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return Int; |
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|
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function compressBound (Source_Len : in ULong) return ULong; |
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|
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function deflateBound |
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(Strm : in Z_Streamp; |
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Source_Len : in ULong) |
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return ULong; |
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|
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function gzungetc (C : in Int; File : in gzFile) return Int; |
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|
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function zlibCompileFlags return ULong; |
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|
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private |
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|
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type Z_Stream is record -- zlib.h:68 |
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Next_In : Voidp := Nul; -- next input byte |
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Avail_In : UInt := 0; -- number of bytes available at next_in |
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Total_In : ULong := 0; -- total nb of input bytes read so far |
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Next_Out : Voidp := Nul; -- next output byte should be put there |
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Avail_Out : UInt := 0; -- remaining free space at next_out |
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Total_Out : ULong := 0; -- total nb of bytes output so far |
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msg : Chars_Ptr; -- last error message, NULL if no error |
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state : Voidp; -- not visible by applications |
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zalloc : alloc_func := null; -- used to allocate the internal state |
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zfree : free_func := null; -- used to free the internal state |
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opaque : Voidp; -- private data object passed to |
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-- zalloc and zfree |
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data_type : Int; -- best guess about the data type: |
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-- ascii or binary |
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adler : ULong; -- adler32 value of the uncompressed |
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-- data |
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reserved : ULong; -- reserved for future use |
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end record; |
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|
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pragma Convention (C, Z_Stream); |
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|
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pragma Import (C, zlibVersion, "zlibVersion"); |
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pragma Import (C, Deflate, "deflate"); |
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pragma Import (C, DeflateEnd, "deflateEnd"); |
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pragma Import (C, Inflate, "inflate"); |
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pragma Import (C, InflateEnd, "inflateEnd"); |
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pragma Import (C, deflateSetDictionary, "deflateSetDictionary"); |
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pragma Import (C, deflateCopy, "deflateCopy"); |
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pragma Import (C, deflateReset, "deflateReset"); |
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pragma Import (C, deflateParams, "deflateParams"); |
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pragma Import (C, inflateSetDictionary, "inflateSetDictionary"); |
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pragma Import (C, inflateSync, "inflateSync"); |
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pragma Import (C, inflateReset, "inflateReset"); |
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pragma Import (C, compress, "compress"); |
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pragma Import (C, compress2, "compress2"); |
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pragma Import (C, uncompress, "uncompress"); |
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pragma Import (C, gzopen, "gzopen"); |
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pragma Import (C, gzdopen, "gzdopen"); |
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pragma Import (C, gzsetparams, "gzsetparams"); |
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pragma Import (C, gzread, "gzread"); |
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pragma Import (C, gzwrite, "gzwrite"); |
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pragma Import (C, gzprintf, "gzprintf"); |
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pragma Import (C, gzputs, "gzputs"); |
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pragma Import (C, gzgets, "gzgets"); |
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pragma Import (C, gzputc, "gzputc"); |
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pragma Import (C, gzgetc, "gzgetc"); |
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pragma Import (C, gzflush, "gzflush"); |
| 413 |
pragma Import (C, gzseek, "gzseek"); |
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pragma Import (C, gzrewind, "gzrewind"); |
| 415 |
pragma Import (C, gztell, "gztell"); |
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pragma Import (C, gzeof, "gzeof"); |
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pragma Import (C, gzclose, "gzclose"); |
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pragma Import (C, gzerror, "gzerror"); |
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pragma Import (C, adler32, "adler32"); |
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pragma Import (C, crc32, "crc32"); |
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pragma Import (C, deflateInit, "deflateInit_"); |
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pragma Import (C, inflateInit, "inflateInit_"); |
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pragma Import (C, deflateInit2, "deflateInit2_"); |
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pragma Import (C, inflateInit2, "inflateInit2_"); |
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pragma Import (C, zError, "zError"); |
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pragma Import (C, inflateSyncPoint, "inflateSyncPoint"); |
| 427 |
pragma Import (C, get_crc_table, "get_crc_table"); |
| 428 |
|
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-- since zlib 1.2.0: |
| 430 |
|
| 431 |
pragma Import (C, inflateCopy, "inflateCopy"); |
| 432 |
pragma Import (C, compressBound, "compressBound"); |
| 433 |
pragma Import (C, deflateBound, "deflateBound"); |
| 434 |
pragma Import (C, gzungetc, "gzungetc"); |
| 435 |
pragma Import (C, zlibCompileFlags, "zlibCompileFlags"); |
| 436 |
|
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pragma Import (C, inflateBackInit, "inflateBackInit_"); |
| 438 |
|
| 439 |
-- I stopped binding the inflateBack routines, becouse realize that |
| 440 |
-- it does not support zlib and gzip headers for now, and have no |
| 441 |
-- symmetric deflateBack routines. |
| 442 |
-- ZLib-Ada is symmetric regarding deflate/inflate data transformation |
| 443 |
-- and has a similar generic callback interface for the |
| 444 |
-- deflate/inflate transformation based on the regular Deflate/Inflate |
| 445 |
-- routines. |
| 446 |
|
| 447 |
-- pragma Import (C, inflateBack, "inflateBack"); |
| 448 |
-- pragma Import (C, inflateBackEnd, "inflateBackEnd"); |
| 449 |
|
| 450 |
end ZLib.Thin; |
