diff --git a/src/shared/utils.pas b/src/shared/utils.pas
index 712923e93b6c2a2fa2abefe95a1b282f51429ebc..253e838961316e5bd5e2b19595ba10d7760e033a 100644 (file)
--- a/src/shared/utils.pas
+++ b/src/shared/utils.pas
+(* Copyright (C) DooM 2D:Forever Developers
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *)
{$MODE DELPHI}
unit utils;
interface
+uses
+ SysUtils, Classes;
+
+
// does filename have one of ".wad", ".pk3", ".zip" extensions?
function hasWadExtension (fn: AnsiString): Boolean;
function Int64ToStrComma (i: Int64): AnsiString;
function UpCase1251 (ch: Char): Char;
+function LoCase1251 (ch: Char): Char;
// `true` if strings are equal; ignoring case for cp1251
function StrEquCI1251 (const s0, s1: AnsiString): Boolean;
// nobody cares about shitdoze, so i'll use the same code path for it
function findFileCI (var pathname: AnsiString; lastIsDir: Boolean=false): Boolean;
+// they throws
+function openDiskFileRO (pathname: AnsiString): TStream;
+function createDiskFile (pathname: AnsiString): TStream;
+
+// little endian
+procedure writeInt (st: TStream; v: Byte); overload;
+procedure writeInt (st: TStream; v: ShortInt); overload;
+procedure writeInt (st: TStream; v: Word); overload;
+procedure writeInt (st: TStream; v: SmallInt); overload;
+procedure writeInt (st: TStream; v: LongWord); overload;
+procedure writeInt (st: TStream; v: LongInt); overload;
+procedure writeInt (st: TStream; v: Int64); overload;
+procedure writeInt (st: TStream; v: UInt64); overload;
+
+function readByte (st: TStream): Byte;
+function readShortInt (st: TStream): ShortInt;
+function readWord (st: TStream): Word;
+function readSmallInt (st: TStream): SmallInt;
+function readLongWord (st: TStream): LongWord;
+function readLongInt (st: TStream): LongInt;
+function readInt64 (st: TStream): Int64;
+function readUInt64 (st: TStream): UInt64;
+
+// big endian
+procedure writeIntBE (st: TStream; v: Byte); overload;
+procedure writeIntBE (st: TStream; v: ShortInt); overload;
+procedure writeIntBE (st: TStream; v: Word); overload;
+procedure writeIntBE (st: TStream; v: SmallInt); overload;
+procedure writeIntBE (st: TStream; v: LongWord); overload;
+procedure writeIntBE (st: TStream; v: LongInt); overload;
+procedure writeIntBE (st: TStream; v: Int64); overload;
+procedure writeIntBE (st: TStream; v: UInt64); overload;
+
+function readByteBE (st: TStream): Byte;
+function readShortIntBE (st: TStream): ShortInt;
+function readWordBE (st: TStream): Word;
+function readSmallIntBE (st: TStream): SmallInt;
+function readLongWordBE (st: TStream): LongWord;
+function readLongIntBE (st: TStream): LongInt;
+function readInt64BE (st: TStream): Int64;
+function readUInt64BE (st: TStream): UInt64;
-implementation
-uses
- SysUtils;
+implementation
function hasWadExtension (fn: AnsiString): Boolean;
end;
+function LoCase1251 (ch: Char): Char;
+begin
+ if ch < #128 then
+ begin
+ if (ch >= 'A') and (ch <= 'Z') then Inc(ch, 32);
+ end
+ else
+ begin
+ if (ch >= #192) and (ch <= #223) then
+ begin
+ Inc(ch, 32);
+ end
+ else
+ begin
+ case ch of
+ #168, #170, #175: Inc(ch, 16);
+ #161, #178: Inc(ch);
+ end;
+ end;
+ end;
+ result := ch;
+end;
+
+
function StrEquCI1251 (const s0, s1: AnsiString): Boolean;
var
i: Integer;
end;
+function openDiskFileRO (pathname: AnsiString): TStream;
+begin
+ if not findFileCI(pathname) then raise Exception.Create('can''t open file "'+pathname+'"');
+ result := TFileStream.Create(pathname, fmOpenRead or {fmShareDenyWrite}fmShareDenyNone);
+end;
+
+function createDiskFile (pathname: AnsiString): TStream;
+var
+ path: AnsiString;
+begin
+ path := ExtractFilePath(pathname);
+ if length(path) > 0 then
+ begin
+ if not findFileCI(path, true) then raise Exception.Create('can''t create file "'+pathname+'"');
+ end;
+ result := TFileStream.Create(path+ExtractFileName(pathname), fmCreate);
+end;
+
+
+procedure writeIntegerLE (st: TStream; vp: Pointer; size: Integer);
+{$IFDEF ENDIAN_LITTLE}
+begin
+ st.writeBuffer(vp^, size);
+end;
+{$ELSE}
+var
+ p: PByte;
+begin
+ p := PByte(vp)+size-1;
+ while size > 0 do
+ begin
+ st.writeBuffer(p^, 1);
+ Dec(size);
+ Dec(p);
+ end;
+end;
+{$ENDIF}
+
+procedure writeIntegerBE (st: TStream; vp: Pointer; size: Integer);
+{$IFDEF ENDIAN_LITTLE}
+var
+ p: PByte;
+begin
+ p := PByte(vp)+size-1;
+ while size > 0 do
+ begin
+ st.writeBuffer(p^, 1);
+ Dec(size);
+ Dec(p);
+ end;
+end;
+{$ELSE}
+begin
+ st.writeBuffer(vp^, size);
+end;
+{$ENDIF}
+
+procedure writeInt (st: TStream; v: Byte); overload; begin writeIntegerLE(st, @v, 1); end;
+procedure writeInt (st: TStream; v: ShortInt); overload; begin writeIntegerLE(st, @v, 1); end;
+procedure writeInt (st: TStream; v: Word); overload; begin writeIntegerLE(st, @v, 2); end;
+procedure writeInt (st: TStream; v: SmallInt); overload; begin writeIntegerLE(st, @v, 2); end;
+procedure writeInt (st: TStream; v: LongWord); overload; begin writeIntegerLE(st, @v, 4); end;
+procedure writeInt (st: TStream; v: LongInt); overload; begin writeIntegerLE(st, @v, 4); end;
+procedure writeInt (st: TStream; v: Int64); overload; begin writeIntegerLE(st, @v, 8); end;
+procedure writeInt (st: TStream; v: UInt64); overload; begin writeIntegerLE(st, @v, 8); end;
+
+procedure writeIntBE (st: TStream; v: Byte); overload; begin writeIntegerBE(st, @v, 1); end;
+procedure writeIntBE (st: TStream; v: ShortInt); overload; begin writeIntegerBE(st, @v, 1); end;
+procedure writeIntBE (st: TStream; v: Word); overload; begin writeIntegerBE(st, @v, 2); end;
+procedure writeIntBE (st: TStream; v: SmallInt); overload; begin writeIntegerBE(st, @v, 2); end;
+procedure writeIntBE (st: TStream; v: LongWord); overload; begin writeIntegerBE(st, @v, 4); end;
+procedure writeIntBE (st: TStream; v: LongInt); overload; begin writeIntegerBE(st, @v, 4); end;
+procedure writeIntBE (st: TStream; v: Int64); overload; begin writeIntegerBE(st, @v, 8); end;
+procedure writeIntBE (st: TStream; v: UInt64); overload; begin writeIntegerBE(st, @v, 8); end;
+
+
+procedure readIntegerLE (st: TStream; vp: Pointer; size: Integer);
+{$IFDEF ENDIAN_LITTLE}
+begin
+ st.readBuffer(vp^, size);
+end;
+{$ELSE}
+var
+ p: PByte;
+begin
+ p := PByte(vp)+size-1;
+ while size > 0 do
+ begin
+ st.readBuffer(p^, 1);
+ Dec(size);
+ Dec(p);
+ end;
+end;
+{$ENDIF}
+
+procedure readIntegerBE (st: TStream; vp: Pointer; size: Integer);
+{$IFDEF ENDIAN_LITTLE}
+var
+ p: PByte;
+begin
+ p := PByte(vp)+size-1;
+ while size > 0 do
+ begin
+ st.readBuffer(p^, 1);
+ Dec(size);
+ Dec(p);
+ end;
+end;
+{$ELSE}
+begin
+ st.readBuffer(vp^, size);
+end;
+{$ENDIF}
+
+function readByte (st: TStream): Byte; begin readIntegerLE(st, @result, 1); end;
+function readShortInt (st: TStream): ShortInt; begin readIntegerLE(st, @result, 1); end;
+function readWord (st: TStream): Word; begin readIntegerLE(st, @result, 2); end;
+function readSmallInt (st: TStream): SmallInt; begin readIntegerLE(st, @result, 2); end;
+function readLongWord (st: TStream): LongWord; begin readIntegerLE(st, @result, 4); end;
+function readLongInt (st: TStream): LongInt; begin readIntegerLE(st, @result, 4); end;
+function readInt64 (st: TStream): Int64; begin readIntegerLE(st, @result, 8); end;
+function readUInt64 (st: TStream): UInt64; begin readIntegerLE(st, @result, 8); end;
+
+function readByteBE (st: TStream): Byte; begin readIntegerBE(st, @result, 1); end;
+function readShortIntBE (st: TStream): ShortInt; begin readIntegerBE(st, @result, 1); end;
+function readWordBE (st: TStream): Word; begin readIntegerBE(st, @result, 2); end;
+function readSmallIntBE (st: TStream): SmallInt; begin readIntegerBE(st, @result, 2); end;
+function readLongWordBE (st: TStream): LongWord; begin readIntegerBE(st, @result, 4); end;
+function readLongIntBE (st: TStream): LongInt; begin readIntegerBE(st, @result, 4); end;
+function readInt64BE (st: TStream): Int64; begin readIntegerBE(st, @result, 8); end;
+function readUInt64BE (st: TStream): UInt64; begin readIntegerBE(st, @result, 8); end;
+
+
end.