hedgewars/uPhysFSLayer.pas
author Mitchell Kember <mk12360@gmail.com>
Thu, 29 Nov 2012 19:44:18 -0500
changeset 8144 f3ba33d5d2b1
parent 8134 38e163cc3bfd
child 8283 af97cdbb7713
permissions -rw-r--r--
Google Code-in: Hide "video record" keybind option Removes the recording keybinding option using preprocessor conditions when it is unavailable. This includes when Hedgewars is being built either with the recording feature explicitly disabled or when FFMPEG/LibAV were not found. https://google-melange.appspot.com/gci/task/view/google/gci2012/7948213
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unit uPhysFSLayer;
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interface
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uses SDLh, LuaPas;
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{$IFDEF ANDROID}
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    {$linklib physfs}
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{$ELSE}
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    {$IFDEF DARWIN}
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        {$LINKFRAMEWORK IOKit}
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    {$ENDIF}
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{$ENDIF}
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const
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{$IFDEF WIN32}
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    PhysfsLibName = 'libphysfs';
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{$ELSE}
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    {$LINKLIB ../bin/libphysfs.a}
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    PhysfsLibName = 'physfs';
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{$ENDIF}
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procedure initModule;
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procedure freeModule;
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type PFSFile = pointer;
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function rwopsOpenRead(fname: shortstring): PSDL_RWops;
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function rwopsOpenWrite(fname: shortstring): PSDL_RWops;
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function pfsOpenRead(fname: shortstring): PFSFile;
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function pfsClose(f: PFSFile): boolean;
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procedure pfsReadLn(f: PFSFile; var s: shortstring);
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procedure pfsReadLnA(f: PFSFile; var s: ansistring);
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function pfsBlockRead(f: PFSFile; buf: pointer; size: Int64): Int64;
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function pfsEOF(f: PFSFile): boolean;
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function pfsExists(fname: shortstring): boolean;
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function  physfsReader(L: Plua_State; f: PFSFile; sz: Psize_t) : PChar; cdecl; external PhysfsLibName;
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procedure physfsReaderSetBuffer(buf: pointer); cdecl; external PhysfsLibName;
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implementation
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uses uUtils, uVariables;
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function PHYSFS_init(argv0: PChar) : LongInt; cdecl; external PhysfsLibName;
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function PHYSFS_deinit() : LongInt; cdecl; external PhysfsLibName;
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function PHYSFSRWOPS_openRead(fname: PChar): PSDL_RWops; cdecl ; external PhysfsLibName;
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function PHYSFSRWOPS_openWrite(fname: PChar): PSDL_RWops; cdecl; external PhysfsLibName;
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function PHYSFS_mount(newDir, mountPoint: PChar; appendToPath: LongBool) : LongInt; cdecl; external PhysfsLibName;
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function PHYSFS_openRead(fname: PChar): PFSFile; cdecl; external PhysfsLibName;
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function PHYSFS_eof(f: PFSFile): LongBool; cdecl; external PhysfsLibName;
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function PHYSFS_readBytes(f: PFSFile; buffer: pointer; len: Int64): Int64; cdecl; external PhysfsLibName;
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function PHYSFS_close(f: PFSFile): LongBool; cdecl; external PhysfsLibName;
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function PHYSFS_exists(fname: PChar): LongBool; cdecl; external PhysfsLibName;
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procedure hedgewarsMountPackages(); cdecl; external PhysfsLibName;
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function rwopsOpenRead(fname: shortstring): PSDL_RWops;
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begin
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    exit(PHYSFSRWOPS_openRead(Str2PChar(fname)));
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end;
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function rwopsOpenWrite(fname: shortstring): PSDL_RWops;
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begin
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    exit(PHYSFSRWOPS_openWrite(Str2PChar(fname)));
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end;
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function pfsOpenRead(fname: shortstring): PFSFile;
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begin
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    exit(PHYSFS_openRead(Str2PChar(fname)));
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end;
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function pfsEOF(f: PFSFile): boolean;
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begin
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    exit(PHYSFS_eof(f))
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end;
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function pfsClose(f: PFSFile): boolean;
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begin
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    exit(PHYSFS_close(f))
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end;
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function pfsExists(fname: shortstring): boolean;
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begin
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    exit(PHYSFS_exists(Str2PChar(fname)))
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end;
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procedure pfsReadLn(f: PFSFile; var s: shortstring);
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var c: char;
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begin
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s[0]:= #0;
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while (PHYSFS_readBytes(f, @c, 1) = 1) and (c <> #10) do
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    if (c <> #13) and (s[0] < #255) then
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        begin
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        inc(s[0]);
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        s[byte(s[0])]:= c
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        end
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end;
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procedure pfsReadLnA(f: PFSFile; var s: ansistring);
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var c: char;
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    b: shortstring;
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begin
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s:= '';
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b[0]:= #0;
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while (PHYSFS_readBytes(f, @c, 1) = 1) and (c <> #10) do
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    if (c <> #13) then
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        begin
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        inc(b[0]);
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        b[byte(b[0])]:= c;
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        if b[0] = #255 then
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            begin
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            s:= s + b;
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            b[0]:= #0
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            end
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        end;
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s:= s + b
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end;
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function pfsBlockRead(f: PFSFile; buf: pointer; size: Int64): Int64;
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var r: Int64;
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begin
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    r:= PHYSFS_readBytes(f, buf, size);
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    if r <= 0 then
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        pfsBlockRead:= 0
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    else
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        pfsBlockRead:= r
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end;
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procedure initModule;
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var i: LongInt;
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begin
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    i:= PHYSFS_init(Str2PChar(ParamStr(0)));
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    AddFileLog('[PhysFS] init: ' + inttostr(i));
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    i:= PHYSFS_mount(Str2PChar(PathPrefix), nil, true);
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    AddFileLog('[PhysFS] mount ' + PathPrefix + ': ' + inttostr(i));
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    i:= PHYSFS_mount(Str2PChar(UserPathPrefix + '/Data'), nil, true);
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    AddFileLog('[PhysFS] mount ' + UserPathPrefix + '/Data: ' + inttostr(i));
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    hedgewarsMountPackages;
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end;
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procedure freeModule;
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begin
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    PHYSFS_deinit;
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end;
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end.