just a first experimental version

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/experimental@2011 b956fd51-792f-4845-bead-9b4dfca2ff2c

1 files changed, 215 insertions, 0 deletions

diff --git a/Medley/src/lib/zlib/zlib.pas b/Medley/src/lib/zlib/zlib.pas
new file mode 100644
index 00000000..8d09313f
--- /dev/null
+++ b/Medley/src/lib/zlib/zlib.pas
@@ -0,0 +1,215 @@
+(*
+ * zlib pascal headers
+ * This file is part of Free Pascal, released under the LGPL.
+ *)
+
+{$ifdef FPC}
+  {$ifndef NO_SMART_LINK}
+  {$smartlink on}
+  {$endif}
+{$endif}
+unit zlib;
+
+interface
+
+{$ifdef FPC}
+  {$mode objfpc} // Needed for array of const
+  {$H+} // use long strings
+  {$PACKRECORDS C}
+{$endif}
+
+uses
+  ctypes;
+
+const
+  ZLIB_VERSION = '1.2.3';
+
+{$ifdef MSWINDOWS}
+  libz = 'zlib1';
+{$else}
+  libz = 'z';
+  {$IFDEF DARWIN}
+    {$linklib libz}
+  {$ENDIF}
+{$endif}
+
+type
+  { Compatible with paszlib }
+  uInt    = cuint;
+  uLong   = culong;
+  uLongf  = uLong; {FAR}
+  PuLongf = ^uLongf;
+  z_off_t = clong;
+  pbyte   = ^byte;
+  bytef   = byte; {FAR}
+  pbytef  = ^byte; 
+  voidpf  = pointer;
+
+  TAllocfunc = function (opaque: voidpf; items: uInt; size: uInt): voidpf; cdecl;
+  TFreeFunc = procedure (opaque: voidpf; address: voidpf); cdecl;
+
+  TInternalState = record
+  end;
+  PInternalState = ^TInternalstate;
+
+  TZStream = record
+    next_in:   pbytef;
+    avail_in:  uInt;
+    total_in:  uLong;
+    next_out:  pbytef;
+    avail_out: uInt;
+    total_out: uLong;
+    msg:       pchar;
+    state:     PInternalState;
+    zalloc:    TAllocFunc;
+    zfree:     TFreeFunc;
+    opaque:    voidpf;
+    data_type: cint;
+    adler:     uLong;
+    reserved:  uLong;
+  end;
+  TZStreamRec = TZStream;
+  PZstream = ^TZStream;
+  gzFile = pointer;
+
+
+const
+  Z_NO_FLUSH      = 0;
+  Z_PARTIAL_FLUSH = 1;
+  Z_SYNC_FLUSH    = 2;
+  Z_FULL_FLUSH    = 3;
+  Z_FINISH        = 4;
+  Z_BLOCK         = 5;
+
+  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_RLE              = 3;
+  Z_FIXED            = 4;
+  Z_DEFAULT_STRATEGY = 0;
+
+  Z_BINARY  = 0;
+  Z_TEXT    = 1;
+  Z_ASCII   = Z_TEXT;
+  Z_UNKNOWN = 2;
+
+  Z_DEFLATED = 8;
+
+  Z_NULL = 0;
+
+function zlibVersionpchar(): pchar; cdecl; external libz name 'zlibVersion';
+function zlibVersion(): string;
+
+function deflate(var strm: TZStream; flush: integer): integer; cdecl; external libz name 'deflate';
+function deflateEnd(var strm: TZStream): integer; cdecl; external libz name 'deflateEnd';
+function inflate(var strm: TZStream; flush: integer): integer; cdecl; external libz name 'inflate';
+function inflateEnd(var strm: TZStream): integer; cdecl; external libz name 'inflateEnd';
+function deflateSetDictionary(var strm: TZStream; dictionary: pbytef; dictLength: uInt): integer; cdecl; external libz name 'deflateSetDictionary';
+function deflateCopy(var dest, source: TZstream): integer; cdecl; external libz name 'deflateCopy';
+function deflateReset(var strm: TZStream): integer; cdecl; external libz name 'deflateReset';
+function deflateParams(var strm: TZStream; level: integer; strategy: integer): integer; cdecl; external libz name 'deflateParams';
+//...
+function inflateSetDictionary(var strm: TZStream; dictionary: pbytef; dictLength: uInt): integer; cdecl; external libz name 'inflateSetDictionary';
+function inflateSync(var strm: TZStream): integer; cdecl; external libz name 'inflateSync';
+//...
+function inflateReset(var strm: TZStream): integer; cdecl; external libz name 'inflateReset';
+
+function compress(dest: pbytef; destLen: puLongf; source : pbytef; sourceLen: uLong): integer; cdecl; external libz name 'compress';
+function compress2(dest: pbytef; destLen: puLongf; source : pbytef; sourceLen: uLong; level: integer): integer; cdecl; external libz name 'compress2';
+function uncompress(dest: pbytef; destLen: puLongf; source : pbytef; sourceLen: uLong): integer; cdecl; external libz name 'uncompress';
+
+function gzopen(path: pchar; mode: pchar): gzFile; cdecl; external libz name 'gzopen';
+function gzdopen(fd: integer; mode: pchar): gzFile; cdecl; external libz name 'gzdopen';
+function gzsetparams(thefile: gzFile; level: integer; strategy: integer): integer; cdecl; external libz name 'gzsetparams';
+function gzread(thefile: gzFile; buf: pointer; len: cardinal): integer; cdecl; external libz name 'gzread';
+function gzwrite(thefile: gzFile; buf: pointer; len: cardinal): integer; cdecl; external libz name 'gzwrite';
+function gzprintf(thefile: gzFile; format: pbytef; args: array of const): integer; cdecl; external libz name 'gzprintf';
+function gzputs(thefile: gzFile; s: pbytef): integer; cdecl; external libz name 'gzputs';
+function gzgets(thefile: gzFile; buf: pbytef; len: integer): pchar; cdecl; external libz name 'gzgets';
+function gzputc(thefile: gzFile; c: integer): integer; cdecl; external libz name 'gzputc';
+function gzgetc(thefile: gzFile): integer; cdecl; external libz name 'gzgetc';
+function gzflush(thefile: gzFile; flush: integer): integer; cdecl; external libz name 'gzflush';
+function gzseek(thefile: gzFile; offset: z_off_t; whence: integer): z_off_t; cdecl; external libz name 'gzseek';
+function gzrewind(thefile: gzFile): integer; cdecl; external libz name 'gzrewind';
+function gztell(thefile: gzFile): z_off_t; cdecl; external libz name 'gztell';
+function gzeof(thefile: gzFile): integer; cdecl; external libz name 'gzeof';
+function gzclose(thefile: gzFile): integer; cdecl; external libz name 'gzclose';
+function gzerror(thefile: gzFile; var errnum: integer): pchar; cdecl; external libz name 'gzerror';
+
+function adler32(adler: uLong; buf: pbytef; len: uInt): uLong; cdecl; external libz name 'adler32';
+function crc32(crc: uLong; buf: pbytef; len: uInt): uLong; cdecl; external libz name 'crc32';
+
+function deflateInit_(var strm: TZStream; level: integer; version: pchar; stream_size: integer): integer; cdecl; external libz name 'deflateInit_';
+function deflateInit(var strm: TZStream; level : integer) : integer;
+function inflateInit_(var strm: TZStream; version: pchar; stream_size: integer): integer; cdecl; external libz name 'inflateInit_';
+function inflateInit(var strm:TZStream) : integer;
+function deflateInit2_(var strm: TZStream; level: integer; method: integer; windowBits: integer; memLevel: integer; strategy: integer; version: pchar; stream_size: integer): integer; cdecl; external libz name 'deflateInit2_';
+function deflateInit2(var strm: TZStream; level, method, windowBits, memLevel, strategy: integer): integer;
+function inflateInit2_(var strm: TZStream; windowBits: integer; version: pchar; stream_size: integer): integer; cdecl; external libz name 'inflateInit2_';
+function inflateInit2(var strm: TZStream; windowBits: integer): integer;
+
+function zErrorpchar(err: integer): pchar; cdecl; external libz name 'zError';
+function zError(err: integer): string;
+function inflateSyncPoint(z: PZstream): integer; cdecl; external libz name 'inflateSyncPoint';
+function get_crc_table(): pointer; cdecl; external libz name 'get_crc_table';
+
+function zlibAllocMem(AppData: Pointer; Items, Size: Integer):  Pointer; cdecl;
+procedure zlibFreeMem(AppData, Block: Pointer);  cdecl;
+
+implementation
+
+function zlibversion(): string;
+begin
+   zlibversion := string(zlibversionpchar);
+end;
+
+function deflateInit(var strm: TZStream; level: integer) : integer;
+begin
+   deflateInit := deflateInit_(strm, level, ZLIB_VERSION, sizeof(TZStream));
+end;
+
+function inflateInit(var strm: TZStream): integer;
+begin
+   inflateInit := inflateInit_(strm, ZLIB_VERSION, sizeof(TZStream));
+end;
+
+function deflateInit2(var strm: TZStream; level, method, windowBits, memLevel, strategy: integer) : integer;
+begin
+   deflateInit2 := deflateInit2_(strm, level, method, windowBits, memLevel, strategy, ZLIB_VERSION, sizeof(TZStream));
+end;
+
+function inflateInit2(var strm: TZStream; windowBits: integer): integer;
+begin
+   inflateInit2 := inflateInit2_(strm, windowBits, ZLIB_VERSION, sizeof(TZStream));
+end;
+
+function zError(err: integer): string;
+begin
+   zerror := string(zErrorpchar(err));
+end;
+
+function zlibAllocMem(AppData: Pointer; Items, Size: Integer): Pointer; cdecl;
+begin
+  Result := GetMemory(Items * Size);
+end;
+
+procedure zlibFreeMem(AppData, Block: Pointer); cdecl;
+begin
+  FreeMem(Block);
+end;
+
+end.