1 ---------------------------------------------------------------- 2 -- ZLib for Ada thick binding. -- 3 -- -- 4 -- Copyright (C) 2002-2003 Dmitriy Anisimkov -- 5 -- -- 6 -- Open source license information is in the zlib.ads file. -- 7 ---------------------------------------------------------------- 8 9 -- $Id: zlib-thin.adb,v 1.8 2003/12/14 18:27:31 vagul Exp $ 10 11 package body ZLib.Thin is 12 13 ZLIB_VERSION : constant Chars_Ptr := zlibVersion; 14 15 Z_Stream_Size : constant Int := Z_Stream'Size / System.Storage_Unit; 16 17 -------------- 18 -- Avail_In -- 19 -------------- 20 21 function Avail_In (Strm : in Z_Stream) return UInt is 22 begin 23 return Strm.Avail_In; 24 end Avail_In; 25 26 --------------- 27 -- Avail_Out -- 28 --------------- 29 30 function Avail_Out (Strm : in Z_Stream) return UInt is 31 begin 32 return Strm.Avail_Out; 33 end Avail_Out; 34 35 ------------------ 36 -- Deflate_Init -- 37 ------------------ 38 39 function Deflate_Init 40 (strm : Z_Streamp; 41 level : Int; 42 method : Int; 43 windowBits : Int; 44 memLevel : Int; 45 strategy : Int) 46 return Int is 47 begin 48 return deflateInit2 49 (strm, 50 level, 51 method, 52 windowBits, 53 memLevel, 54 strategy, 55 ZLIB_VERSION, 56 Z_Stream_Size); 57 end Deflate_Init; 58 59 ------------------ 60 -- Inflate_Init -- 61 ------------------ 62 63 function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int is 64 begin 65 return inflateInit2 (strm, windowBits, ZLIB_VERSION, Z_Stream_Size); 66 end Inflate_Init; 67 68 ------------------------ 69 -- Last_Error_Message -- 70 ------------------------ 71 72 function Last_Error_Message (Strm : in Z_Stream) return String is 73 use Interfaces.C.Strings; 74 begin 75 if Strm.msg = Null_Ptr then 76 return ""; 77 else 78 return Value (Strm.msg); 79 end if; 80 end Last_Error_Message; 81 82 ------------ 83 -- Set_In -- 84 ------------ 85 86 procedure Set_In 87 (Strm : in out Z_Stream; 88 Buffer : in Voidp; 89 Size : in UInt) is 90 begin 91 Strm.Next_In := Buffer; 92 Strm.Avail_In := Size; 93 end Set_In; 94 95 ------------------ 96 -- Set_Mem_Func -- 97 ------------------ 98 99 procedure Set_Mem_Func 100 (Strm : in out Z_Stream; 101 Opaque : in Voidp; 102 Alloc : in alloc_func; 103 Free : in free_func) is 104 begin 105 Strm.opaque := Opaque; 106 Strm.zalloc := Alloc; 107 Strm.zfree := Free; 108 end Set_Mem_Func; 109 110 ------------- 111 -- Set_Out -- 112 ------------- 113 114 procedure Set_Out 115 (Strm : in out Z_Stream; 116 Buffer : in Voidp; 117 Size : in UInt) is 118 begin 119 Strm.Next_Out := Buffer; 120 Strm.Avail_Out := Size; 121 end Set_Out; 122 123 -------------- 124 -- Total_In -- 125 -------------- 126 127 function Total_In (Strm : in Z_Stream) return ULong is 128 begin 129 return Strm.Total_In; 130 end Total_In; 131 132 --------------- 133 -- Total_Out -- 134 --------------- 135 136 function Total_Out (Strm : in Z_Stream) return ULong is 137 begin 138 return Strm.Total_Out; 139 end Total_Out; 140 141 end ZLib.Thin; 142
