/
zlib-thin.adb
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zlib-thin.adb
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----------------------------------------------------------------
-- ZLib for Ada thick binding. --
-- --
-- Copyright (C) 2002-2003 Dmitriy Anisimkov --
-- --
-- Open source license information is in the zlib.ads file. --
----------------------------------------------------------------
-- $Id: zlib-thin.adb,v 1.8 2003/12/14 18:27:31 vagul Exp $
package body ZLib.Thin is
ZLIB_VERSION : constant Chars_Ptr := zlibVersion;
Z_Stream_Size : constant Int := Z_Stream'Size / System.Storage_Unit;
--------------
-- Avail_In --
--------------
function Avail_In (Strm : in Z_Stream) return UInt is
begin
return Strm.Avail_In;
end Avail_In;
---------------
-- Avail_Out --
---------------
function Avail_Out (Strm : in Z_Stream) return UInt is
begin
return Strm.Avail_Out;
end Avail_Out;
------------------
-- Deflate_Init --
------------------
function Deflate_Init
(strm : Z_Streamp;
level : Int;
method : Int;
windowBits : Int;
memLevel : Int;
strategy : Int)
return Int is
begin
return deflateInit2
(strm,
level,
method,
windowBits,
memLevel,
strategy,
ZLIB_VERSION,
Z_Stream_Size);
end Deflate_Init;
------------------
-- Inflate_Init --
------------------
function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int is
begin
return inflateInit2 (strm, windowBits, ZLIB_VERSION, Z_Stream_Size);
end Inflate_Init;
------------------------
-- Last_Error_Message --
------------------------
function Last_Error_Message (Strm : in Z_Stream) return String is
use Interfaces.C.Strings;
begin
if Strm.msg = Null_Ptr then
return "";
else
return Value (Strm.msg);
end if;
end Last_Error_Message;
------------
-- Set_In --
------------
procedure Set_In
(Strm : in out Z_Stream;
Buffer : in Voidp;
Size : in UInt) is
begin
Strm.Next_In := Buffer;
Strm.Avail_In := Size;
end Set_In;
------------------
-- Set_Mem_Func --
------------------
procedure Set_Mem_Func
(Strm : in out Z_Stream;
Opaque : in Voidp;
Alloc : in alloc_func;
Free : in free_func) is
begin
Strm.opaque := Opaque;
Strm.zalloc := Alloc;
Strm.zfree := Free;
end Set_Mem_Func;
-------------
-- Set_Out --
-------------
procedure Set_Out
(Strm : in out Z_Stream;
Buffer : in Voidp;
Size : in UInt) is
begin
Strm.Next_Out := Buffer;
Strm.Avail_Out := Size;
end Set_Out;
--------------
-- Total_In --
--------------
function Total_In (Strm : in Z_Stream) return ULong is
begin
return Strm.Total_In;
end Total_In;
---------------
-- Total_Out --
---------------
function Total_Out (Strm : in Z_Stream) return ULong is
begin
return Strm.Total_Out;
end Total_Out;
end ZLib.Thin;