{$INCLUDE "options.inc"}
unit uPhysFSLayer;
interface
uses SDLh, LuaPas;
const PhysfsLibName = {$IFDEF PHYSFS_INTERNAL}'libhwphysfs'{$ELSE}'libphysfs'{$ENDIF};
const PhyslayerLibName = 'libphyslayer';
{$IFNDEF WIN32}
{$linklib physfs}
{$linklib physlayer}
{$ENDIF}
procedure initModule(localPrefix, userPrefix: PChar);
procedure freeModule;
type PFSFile = pointer;
function rwopsOpenRead(fname: shortstring): PSDL_RWops;
function rwopsOpenWrite(fname: shortstring): PSDL_RWops;
function pfsOpenRead(fname: shortstring): PFSFile;
function pfsOpenWrite(fname: shortstring): PFSFile;
function pfsFlush(f: PFSFile): boolean;
function pfsClose(f: PFSFile): boolean;
procedure pfsReadLn(f: PFSFile; var s: shortstring);
procedure pfsReadLnA(f: PFSFile; var s: ansistring);
procedure pfsWriteLn(f: PFSFile; s: shortstring);
function pfsBlockRead(f: PFSFile; buf: pointer; size: Int64): Int64;
function pfsEOF(f: PFSFile): boolean;
function pfsExists(fname: shortstring): boolean;
function pfsMakeDir(path: shortstring): boolean;
function physfsReader(L: Plua_State; f: PFSFile; sz: Psize_t) : PChar; cdecl; external PhyslayerLibName;
procedure physfsReaderSetBuffer(buf: pointer); cdecl; external PhyslayerLibName;
procedure hedgewarsMountPackage(filename: PChar); cdecl; external PhyslayerLibName;
implementation
uses uConsts, uUtils, uVariables{$IFNDEF PAS2C}{$IFDEF HWLIBRARY}, sysutils{$ENDIF}{$ELSE}, physfs{$ENDIF};
function PHYSFSRWOPS_openRead(fname: PChar): PSDL_RWops; cdecl; external PhyslayerLibName;
function PHYSFSRWOPS_openWrite(fname: PChar): PSDL_RWops; cdecl; external PhyslayerLibName;
procedure hedgewarsMountPackages(); cdecl; external PhyslayerLibName;
{$IFNDEF PAS2C}
function PHYSFS_init(argv0: PChar): LongInt; cdecl; external PhysfsLibName;
function PHYSFS_deinit(): LongInt; cdecl; external PhysfsLibName;
function PHYSFS_mount(newDir, mountPoint: PChar; appendToPath: LongBool) : LongBool; cdecl; external PhysfsLibName;
function PHYSFS_openRead(fname: PChar): PFSFile; cdecl; external PhysfsLibName;
function PHYSFS_openWrite(fname: PChar): PFSFile; cdecl; external PhysfsLibName;
function PHYSFS_setWriteDir(path: PChar): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_eof(f: PFSFile): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_readBytes(f: PFSFile; buffer: pointer; len: Int64): Int64; cdecl; external PhysfsLibName;
function PHYSFS_writeBytes(f: PFSFile; buffer: pointer; len: Int64): Int64; cdecl; external PhysfsLibName;
function PHYSFS_seek(f: PFSFile; pos: QWord): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_flush(f: PFSFile): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_close(f: PFSFile): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_setBuffer(f: PFSFile; pos: QWord): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_exists(fname: PChar): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_mkdir(path: PChar): LongBool; cdecl; external PhysfsLibName;
function PHYSFS_getLastError(): PChar; cdecl; external PhysfsLibName;
function PHYSFS_enumerateFiles(dir: PChar): PPChar; cdecl; external PhysfsLibName;
procedure PHYSFS_freeList(list: PPChar); cdecl; external PhysfsLibName;
{$ELSE}
function PHYSFS_readBytes(f: PFSFile; buffer: pointer; len: Int64): Int64;
begin
PHYSFS_readBytes:= PHYSFS_read(f, buffer, 1, len);
end;
{$ENDIF}
function rwopsOpenRead(fname: shortstring): PSDL_RWops;
begin
exit(PHYSFSRWOPS_openRead(Str2PChar(fname)));
end;
function rwopsOpenWrite(fname: shortstring): PSDL_RWops;
begin
exit(PHYSFSRWOPS_openWrite(Str2PChar(fname)));
end;
function pfsOpenRead(fname: shortstring): PFSFile;
var f: PFSFile;
begin
f:= PHYSFS_openRead(Str2PChar(fname));
if f <> nil then
PHYSFS_setBuffer(f, 4096);
exit(f);
end;
function pfsOpenWrite(fname: shortstring): PFSFile;
begin
exit(PHYSFS_openWrite(Str2PChar(fname)));
end;
function pfsEOF(f: PFSFile): boolean;
begin
exit(PHYSFS_eof(f))
end;
function pfsFlush(f: PFSFile): boolean;
begin
exit(PHYSFS_flush(f))
end;
function pfsClose(f: PFSFile): boolean;
begin
exit(PHYSFS_close(f))
end;
function pfsExists(fname: shortstring): boolean;
begin
exit(PHYSFS_exists(Str2PChar(fname)))
end;
function pfsMakeDir(path: shortstring): boolean;
begin
exit(PHYSFS_mkdir(Str2PChar(path)))
end;
function pfsEnumerateFiles(dir: shortstring): PPChar;
begin
exit(PHYSFS_enumerateFiles(Str2PChar(dir)))
end;
procedure pfsFreeList(list: PPChar);
begin
PHYSFS_freeList(list)
end;
procedure pfsReadLn(f: PFSFile; var s: shortstring);
var c: char;
begin
s[0]:= #0;
while (PHYSFS_readBytes(f, @c, 1) = 1) and (c <> #10) do
if (c <> #13) and (s[0] < #255) then
begin
inc(s[0]);
s[byte(s[0])]:= c
end
end;
procedure pfsReadLnA(f: PFSFile; var s: ansistring);
var c: char;
b: shortstring;
begin
s:= '';
b[0]:= #0;
while (PHYSFS_readBytes(f, @c, 1) = 1) and (c <> #10) do
if (c <> #13) then
begin
inc(b[0]);
b[byte(b[0])]:= c;
if b[0] = #255 then
begin
s:= s + ansistring(b);
b[0]:= #0
end
end;
s:= s + ansistring(b)
end;
procedure pfsWriteLn(f: PFSFile; s: shortstring);
var c: char;
begin
c:= #10;
PHYSFS_writeBytes(f, @s[1], byte(s[0]));
PHYSFS_writeBytes(f, @c, 1);
end;
function pfsBlockRead(f: PFSFile; buf: pointer; size: Int64): Int64;
var r: Int64;
begin
r:= PHYSFS_readBytes(f, buf, size);
if r <= 0 then
pfsBlockRead:= 0
else
pfsBlockRead:= r
end;
procedure pfsMount(path: PChar; mountpoint: PChar);
begin
PHYSFS_mount(path, mountpoint, false)
end;
procedure pfsMountAtRoot(path: PChar);
begin
pfsMount(path, PChar(_S'/'));
end;
procedure initModule(localPrefix, userPrefix: PChar);
var i: LongInt;
cPhysfsId: shortstring;
{$IFNDEF MOBILE}
fp: PChar;
{$ENDIF}
begin
{$IFDEF HWLIBRARY}
//TODO: http://icculus.org/pipermail/physfs/2011-August/001006.html
cPhysfsId:= shortstring(GetCurrentDir()) + {$IFDEF DARWIN}{$IFNDEF IPHONEOS}'/Hedgewars.app/Contents/MacOS/' + {$ENDIF}{$ENDIF} ' hedgewars';
{$ELSE}
cPhysfsId:= ParamStr(0);
{$ENDIF}
i:= PHYSFS_init(Str2PChar(cPhysfsId));
//AddFileLog('[PhysFS] init: ' + inttostr(i));
{$IFNDEF MOBILE}
// mount system fonts paths first
for i:= low(cFontsPaths) to high(cFontsPaths) do
begin
fp := cFontsPaths[i];
if fp <> nil then
pfsMount(fp, _P'/Fonts');
end;
{$ENDIF}
pfsMountAtRoot(localPrefix);
pfsMount(userPrefix, PChar('/Config'));
pfsMakeDir('/Config/Data');
pfsMakeDir('/Config/Logs');
pfsMountAtRoot(Str2PChar(shortstring(userPrefix) + '/Data'));
PHYSFS_setWriteDir(userPrefix);
hedgewarsMountPackages;
// need access to teams and frontend configs (for bindings)
pfsMountAtRoot(userPrefix);
if cTestLua then
begin
pfsMountAtRoot(Str2PChar(ExtractFileDir(cScriptName)));
cScriptName := ExtractFileName(cScriptName);
end;
end;
procedure freeModule;
begin
PHYSFS_deinit;
end;
end.