From ea1ebe12668f086e41253260075616b277c920da Mon Sep 17 00:00:00 2001
From: Zack Weinberg <zack@gcc.gnu.org>
Date: Wed, 2 Feb 2005 22:09:16 +0000
Subject: Revert bad import

From-SVN: r94621
---
 zlib/contrib/delphi2/zlib.pas | 534 ------------------------------------------
 1 file changed, 534 deletions(-)
 delete mode 100644 zlib/contrib/delphi2/zlib.pas

(limited to 'zlib/contrib/delphi2/zlib.pas')

diff --git a/zlib/contrib/delphi2/zlib.pas b/zlib/contrib/delphi2/zlib.pas
deleted file mode 100644
index 10ae4ca..0000000
--- a/zlib/contrib/delphi2/zlib.pas
+++ /dev/null
@@ -1,534 +0,0 @@
-{*******************************************************}
-{                                                       }
-{       Delphi Supplemental Components                  }
-{       ZLIB Data Compression Interface Unit            }
-{                                                       }
-{       Copyright (c) 1997 Borland International        }
-{                                                       }
-{*******************************************************}
-
-{ Modified for zlib 1.1.3 by Davide Moretti <dave@rimini.com }
-
-unit zlib;
-
-interface
-
-uses Sysutils, Classes;
-
-type
-  TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer;
-  TFree = procedure (AppData, Block: Pointer);
-
-  // Internal structure.  Ignore.
-  TZStreamRec = packed record
-    next_in: PChar;       // next input byte
-    avail_in: Integer;    // number of bytes available at next_in
-    total_in: Integer;    // total nb of input bytes read so far
-
-    next_out: PChar;      // next output byte should be put here
-    avail_out: Integer;   // remaining free space at next_out
-    total_out: Integer;   // total nb of bytes output so far
-
-    msg: PChar;           // last error message, NULL if no error
-    internal: Pointer;    // not visible by applications
-
-    zalloc: TAlloc;       // used to allocate the internal state
-    zfree: TFree;         // used to free the internal state
-    AppData: Pointer;     // private data object passed to zalloc and zfree
-
-    data_type: Integer;   //  best guess about the data type: ascii or binary
-    adler: Integer;       // adler32 value of the uncompressed data
-    reserved: Integer;    // reserved for future use
-  end;
-
-  // Abstract ancestor class
-  TCustomZlibStream = class(TStream)
-  private
-    FStrm: TStream;
-    FStrmPos: Integer;
-    FOnProgress: TNotifyEvent;
-    FZRec: TZStreamRec;
-    FBuffer: array [Word] of Char;
-  protected
-    procedure Progress(Sender: TObject); dynamic;
-    property OnProgress: TNotifyEvent read FOnProgress write FOnProgress;
-    constructor Create(Strm: TStream);
-  end;
-
-{ TCompressionStream compresses data on the fly as data is written to it, and
-  stores the compressed data to another stream.
-
-  TCompressionStream is write-only and strictly sequential. Reading from the
-  stream will raise an exception. Using Seek to move the stream pointer
-  will raise an exception.
-
-  Output data is cached internally, written to the output stream only when
-  the internal output buffer is full.  All pending output data is flushed
-  when the stream is destroyed.
-
-  The Position property returns the number of uncompressed bytes of
-  data that have been written to the stream so far.
-
-  CompressionRate returns the on-the-fly percentage by which the original
-  data has been compressed:  (1 - (CompressedBytes / UncompressedBytes)) * 100
-  If raw data size = 100 and compressed data size = 25, the CompressionRate
-  is 75%
-
-  The OnProgress event is called each time the output buffer is filled and
-  written to the output stream.  This is useful for updating a progress
-  indicator when you are writing a large chunk of data to the compression
-  stream in a single call.}
-
-
-  TCompressionLevel = (clNone, clFastest, clDefault, clMax);
-
-  TCompressionStream = class(TCustomZlibStream)
-  private
-    function GetCompressionRate: Single;
-  public
-    constructor Create(CompressionLevel: TCompressionLevel; Dest: TStream);
-    destructor Destroy; override;
-    function Read(var Buffer; Count: Longint): Longint; override;
-    function Write(const Buffer; Count: Longint): Longint; override;
-    function Seek(Offset: Longint; Origin: Word): Longint; override;
-    property CompressionRate: Single read GetCompressionRate;
-    property OnProgress;
-  end;
-
-{ TDecompressionStream decompresses data on the fly as data is read from it.
-
-  Compressed data comes from a separate source stream.  TDecompressionStream
-  is read-only and unidirectional; you can seek forward in the stream, but not
-  backwards.  The special case of setting the stream position to zero is
-  allowed.  Seeking forward decompresses data until the requested position in
-  the uncompressed data has been reached.  Seeking backwards, seeking relative
-  to the end of the stream, requesting the size of the stream, and writing to
-  the stream will raise an exception.
-
-  The Position property returns the number of bytes of uncompressed data that
-  have been read from the stream so far.
-
-  The OnProgress event is called each time the internal input buffer of
-  compressed data is exhausted and the next block is read from the input stream.
-  This is useful for updating a progress indicator when you are reading a
-  large chunk of data from the decompression stream in a single call.}
-
-  TDecompressionStream = class(TCustomZlibStream)
-  public
-    constructor Create(Source: TStream);
-    destructor Destroy; override;
-    function Read(var Buffer; Count: Longint): Longint; override;
-    function Write(const Buffer; Count: Longint): Longint; override;
-    function Seek(Offset: Longint; Origin: Word): Longint; override;
-    property OnProgress;
-  end;
-
-
-
-{ CompressBuf compresses data, buffer to buffer, in one call.
-   In: InBuf = ptr to compressed data
-       InBytes = number of bytes in InBuf
-  Out: OutBuf = ptr to newly allocated buffer containing decompressed data
-       OutBytes = number of bytes in OutBuf   }
-procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
-                      out OutBuf: Pointer; out OutBytes: Integer);
-
-
-{ DecompressBuf decompresses data, buffer to buffer, in one call.
-   In: InBuf = ptr to compressed data
-       InBytes = number of bytes in InBuf
-       OutEstimate = zero, or est. size of the decompressed data
-  Out: OutBuf = ptr to newly allocated buffer containing decompressed data
-       OutBytes = number of bytes in OutBuf   }
-procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
- OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
-
-const
-  zlib_version = '1.1.3';
-
-type
-  EZlibError = class(Exception);
-  ECompressionError = class(EZlibError);
-  EDecompressionError = class(EZlibError);
-
-function adler32(adler: Integer; buf: PChar; len: Integer): Integer;
-
-implementation
-
-const
-  Z_NO_FLUSH      = 0;
-  Z_PARTIAL_FLUSH = 1;
-  Z_SYNC_FLUSH    = 2;
-  Z_FULL_FLUSH    = 3;
-  Z_FINISH        = 4;
-
-  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_DEFAULT_STRATEGY    = 0;
-
-  Z_BINARY   = 0;
-  Z_ASCII    = 1;
-  Z_UNKNOWN  = 2;
-
-  Z_DEFLATED = 8;
-
-  _z_errmsg: array[0..9] of PChar = (
-    'need dictionary',      // Z_NEED_DICT      (2)
-    'stream end',           // Z_STREAM_END     (1)
-    '',                     // Z_OK             (0)
-    'file error',           // Z_ERRNO          (-1)
-    'stream error',         // Z_STREAM_ERROR   (-2)
-    'data error',           // Z_DATA_ERROR     (-3)
-    'insufficient memory',  // Z_MEM_ERROR      (-4)
-    'buffer error',         // Z_BUF_ERROR      (-5)
-    'incompatible version', // Z_VERSION_ERROR  (-6)
-    ''
-  );
-
-{$L deflate.obj}
-{$L inflate.obj}
-{$L inftrees.obj}
-{$L trees.obj}
-{$L adler32.obj}
-{$L infblock.obj}
-{$L infcodes.obj}
-{$L infutil.obj}
-{$L inffast.obj}
-
-procedure _tr_init; external;
-procedure _tr_tally; external;
-procedure _tr_flush_block; external;
-procedure _tr_align; external;
-procedure _tr_stored_block; external;
-function adler32; external;
-procedure inflate_blocks_new; external;
-procedure inflate_blocks; external;
-procedure inflate_blocks_reset; external;
-procedure inflate_blocks_free; external;
-procedure inflate_set_dictionary; external;
-procedure inflate_trees_bits; external;
-procedure inflate_trees_dynamic; external;
-procedure inflate_trees_fixed; external;
-procedure inflate_codes_new; external;
-procedure inflate_codes; external;
-procedure inflate_codes_free; external;
-procedure _inflate_mask; external;
-procedure inflate_flush; external;
-procedure inflate_fast; external;
-
-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;
-
-
-
-// deflate compresses data
-function deflateInit_(var strm: TZStreamRec; level: Integer; version: PChar;
-  recsize: Integer): Integer; external;
-function deflate(var strm: TZStreamRec; flush: Integer): Integer; external;
-function deflateEnd(var strm: TZStreamRec): Integer; external;
-
-// inflate decompresses data
-function inflateInit_(var strm: TZStreamRec; version: PChar;
-  recsize: Integer): Integer; external;
-function inflate(var strm: TZStreamRec; flush: Integer): Integer; external;
-function inflateEnd(var strm: TZStreamRec): Integer; external;
-function inflateReset(var strm: TZStreamRec): Integer; external;
-
-
-function zcalloc(AppData: Pointer; Items, Size: Integer): Pointer;
-begin
-  GetMem(Result, Items*Size);
-end;
-
-procedure zcfree(AppData, Block: Pointer);
-begin
-  FreeMem(Block);
-end;
-
-function zlibCheck(code: Integer): Integer;
-begin
-  Result := code;
-  if code < 0 then
-    raise EZlibError.Create('error');    //!!
-end;
-
-function CCheck(code: Integer): Integer;
-begin
-  Result := code;
-  if code < 0 then
-    raise ECompressionError.Create('error'); //!!
-end;
-
-function DCheck(code: Integer): Integer;
-begin
-  Result := code;
-  if code < 0 then
-    raise EDecompressionError.Create('error');  //!!
-end;
-
-procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
-                      out OutBuf: Pointer; out OutBytes: Integer);
-var
-  strm: TZStreamRec;
-  P: Pointer;
-begin
-  FillChar(strm, sizeof(strm), 0);
-  OutBytes := ((InBytes + (InBytes div 10) + 12) + 255) and not 255;
-  GetMem(OutBuf, OutBytes);
-  try
-    strm.next_in := InBuf;
-    strm.avail_in := InBytes;
-    strm.next_out := OutBuf;
-    strm.avail_out := OutBytes;
-    CCheck(deflateInit_(strm, Z_BEST_COMPRESSION, zlib_version, sizeof(strm)));
-    try
-      while CCheck(deflate(strm, Z_FINISH)) <> Z_STREAM_END do
-      begin
-        P := OutBuf;
-        Inc(OutBytes, 256);
-        ReallocMem(OutBuf, OutBytes);
-        strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
-        strm.avail_out := 256;
-      end;
-    finally
-      CCheck(deflateEnd(strm));
-    end;
-    ReallocMem(OutBuf, strm.total_out);
-    OutBytes := strm.total_out;
-  except
-    FreeMem(OutBuf);
-    raise
-  end;
-end;
-
-
-procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
-  OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
-var
-  strm: TZStreamRec;
-  P: Pointer;
-  BufInc: Integer;
-begin
-  FillChar(strm, sizeof(strm), 0);
-  BufInc := (InBytes + 255) and not 255;
-  if OutEstimate = 0 then
-    OutBytes := BufInc
-  else
-    OutBytes := OutEstimate;
-  GetMem(OutBuf, OutBytes);
-  try
-    strm.next_in := InBuf;
-    strm.avail_in := InBytes;
-    strm.next_out := OutBuf;
-    strm.avail_out := OutBytes;
-    DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
-    try
-      while DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END do
-      begin
-        P := OutBuf;
-        Inc(OutBytes, BufInc);
-        ReallocMem(OutBuf, OutBytes);
-        strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
-        strm.avail_out := BufInc;
-      end;
-    finally
-      DCheck(inflateEnd(strm));
-    end;
-    ReallocMem(OutBuf, strm.total_out);
-    OutBytes := strm.total_out;
-  except
-    FreeMem(OutBuf);
-    raise
-  end;
-end;
-
-
-// TCustomZlibStream
-
-constructor TCustomZLibStream.Create(Strm: TStream);
-begin
-  inherited Create;
-  FStrm := Strm;
-  FStrmPos := Strm.Position;
-end;
-
-procedure TCustomZLibStream.Progress(Sender: TObject);
-begin
-  if Assigned(FOnProgress) then FOnProgress(Sender);
-end;
-
-
-// TCompressionStream
-
-constructor TCompressionStream.Create(CompressionLevel: TCompressionLevel;
-  Dest: TStream);
-const
-  Levels: array [TCompressionLevel] of ShortInt =
-    (Z_NO_COMPRESSION, Z_BEST_SPEED, Z_DEFAULT_COMPRESSION, Z_BEST_COMPRESSION);
-begin
-  inherited Create(Dest);
-  FZRec.next_out := FBuffer;
-  FZRec.avail_out := sizeof(FBuffer);
-  CCheck(deflateInit_(FZRec, Levels[CompressionLevel], zlib_version, sizeof(FZRec)));
-end;
-
-destructor TCompressionStream.Destroy;
-begin
-  FZRec.next_in := nil;
-  FZRec.avail_in := 0;
-  try
-    if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
-    while (CCheck(deflate(FZRec, Z_FINISH)) <> Z_STREAM_END)
-      and (FZRec.avail_out = 0) do
-    begin
-      FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
-      FZRec.next_out := FBuffer;
-      FZRec.avail_out := sizeof(FBuffer);
-    end;
-    if FZRec.avail_out < sizeof(FBuffer) then
-      FStrm.WriteBuffer(FBuffer, sizeof(FBuffer) - FZRec.avail_out);
-  finally
-    deflateEnd(FZRec);
-  end;
-  inherited Destroy;
-end;
-
-function TCompressionStream.Read(var Buffer; Count: Longint): Longint;
-begin
-  raise ECompressionError.Create('Invalid stream operation');
-end;
-
-function TCompressionStream.Write(const Buffer; Count: Longint): Longint;
-begin
-  FZRec.next_in := @Buffer;
-  FZRec.avail_in := Count;
-  if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
-  while (FZRec.avail_in > 0) do
-  begin
-    CCheck(deflate(FZRec, 0));
-    if FZRec.avail_out = 0 then
-    begin
-      FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
-      FZRec.next_out := FBuffer;
-      FZRec.avail_out := sizeof(FBuffer);
-      FStrmPos := FStrm.Position;
-      Progress(Self);
-    end;
-  end;
-  Result := Count;
-end;
-
-function TCompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
-begin
-  if (Offset = 0) and (Origin = soFromCurrent) then
-    Result := FZRec.total_in
-  else
-    raise ECompressionError.Create('Invalid stream operation');
-end;
-
-function TCompressionStream.GetCompressionRate: Single;
-begin
-  if FZRec.total_in = 0 then
-    Result := 0
-  else
-    Result := (1.0 - (FZRec.total_out / FZRec.total_in)) * 100.0;
-end;
-
-
-// TDecompressionStream
-
-constructor TDecompressionStream.Create(Source: TStream);
-begin
-  inherited Create(Source);
-  FZRec.next_in := FBuffer;
-  FZRec.avail_in := 0;
-  DCheck(inflateInit_(FZRec, zlib_version, sizeof(FZRec)));
-end;
-
-destructor TDecompressionStream.Destroy;
-begin
-  inflateEnd(FZRec);
-  inherited Destroy;
-end;
-
-function TDecompressionStream.Read(var Buffer; Count: Longint): Longint;
-begin
-  FZRec.next_out := @Buffer;
-  FZRec.avail_out := Count;
-  if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
-  while (FZRec.avail_out > 0) do
-  begin
-    if FZRec.avail_in = 0 then
-    begin
-      FZRec.avail_in := FStrm.Read(FBuffer, sizeof(FBuffer));
-      if FZRec.avail_in = 0 then
-        begin
-          Result := Count - FZRec.avail_out;
-          Exit;
-        end;
-      FZRec.next_in := FBuffer;
-      FStrmPos := FStrm.Position;
-      Progress(Self);
-    end;
-    DCheck(inflate(FZRec, 0));
-  end;
-  Result := Count;
-end;
-
-function TDecompressionStream.Write(const Buffer; Count: Longint): Longint;
-begin
-  raise EDecompressionError.Create('Invalid stream operation');
-end;
-
-function TDecompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
-var
-  I: Integer;
-  Buf: array [0..4095] of Char;
-begin
-  if (Offset = 0) and (Origin = soFromBeginning) then
-  begin
-    DCheck(inflateReset(FZRec));
-    FZRec.next_in := FBuffer;
-    FZRec.avail_in := 0;
-    FStrm.Position := 0;
-    FStrmPos := 0;
-  end
-  else if ( (Offset >= 0) and (Origin = soFromCurrent)) or
-          ( ((Offset - FZRec.total_out) > 0) and (Origin = soFromBeginning)) then
-  begin
-    if Origin = soFromBeginning then Dec(Offset, FZRec.total_out);
-    if Offset > 0 then
-    begin
-      for I := 1 to Offset div sizeof(Buf) do
-        ReadBuffer(Buf, sizeof(Buf));
-      ReadBuffer(Buf, Offset mod sizeof(Buf));
-    end;
-  end
-  else
-    raise EDecompressionError.Create('Invalid stream operation');
-  Result := FZRec.total_out;
-end;
-
-end.
-- 
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