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Diffstat (limited to 'src/Classes/UCommon.pas')
| -rw-r--r-- | src/Classes/UCommon.pas | 774 |
1 files changed, 0 insertions, 774 deletions
diff --git a/src/Classes/UCommon.pas b/src/Classes/UCommon.pas deleted file mode 100644 index 41e3c1f1..00000000 --- a/src/Classes/UCommon.pas +++ /dev/null @@ -1,774 +0,0 @@ -unit UCommon; - -interface - -{$IFDEF FPC} - {$MODE Delphi} -{$ENDIF} - -{$I switches.inc} - -uses - SysUtils, - Classes, - {$IFDEF MSWINDOWS} - Windows, - {$ENDIF} - sdl, - UConfig, - ULog; - -type - TMessageType = ( mtInfo, mtError ); - -procedure ShowMessage( const msg : String; msgType: TMessageType = mtInfo ); - -procedure ConsoleWriteLn(const msg: string); - -function GetResourceStream(const aName, aType : string): TStream; -function RWopsFromStream(Stream: TStream): PSDL_RWops; - -{$IFDEF FPC} -function RandomRange(aMin: Integer; aMax: Integer) : Integer; -{$ENDIF} - -function StringReplaceW(text : WideString; search, rep: WideChar):WideString; -function AdaptFilePaths( const aPath : widestring ): widestring; - -procedure DisableFloatingPointExceptions(); -procedure SetDefaultNumericLocale(); -procedure RestoreNumericLocale(); - -{$IFNDEF MSWINDOWS} - procedure ZeroMemory( Destination: Pointer; Length: DWORD ); - function MakeLong(a, b: Word): Longint; - (* - #define LOBYTE(a) (BYTE)(a) - #define HIBYTE(a) (BYTE)((a)>>8) - #define LOWORD(a) (WORD)(a) - #define HIWORD(a) (WORD)((a)>>16) - #define MAKEWORD(a,b) (WORD)(((a)&0xff)|((b)<<8)) - *) -{$ENDIF} - -function FileExistsInsensitive(var FileName: string): boolean; - -(* - * Character classes - *) - -function IsAlphaChar(ch: WideChar): boolean; -function IsNumericChar(ch: WideChar): boolean; -function IsAlphaNumericChar(ch: WideChar): boolean; -function IsPunctuationChar(ch: WideChar): boolean; -function IsControlChar(ch: WideChar): boolean; - -// A stable alternative to TList.Sort() (use TList.Sort() if applicable, see below) -procedure MergeSort(List: TList; CompareFunc: TListSortCompare); - -function GetAlignedMem(Size: cardinal; Alignment: integer): Pointer; -procedure FreeAlignedMem(P: Pointer); - - -implementation - -uses - Math, - {$IFDEF Delphi} - Dialogs, - {$ENDIF} - UMain; - - -// data used by the ...Locale() functions -{$IFDEF LINUX} - -var - PrevNumLocale: string; - -const - LC_NUMERIC = 1; - -function setlocale(category: integer; locale: pchar): pchar; cdecl; external 'c' name 'setlocale'; - -{$ENDIF} - -// In Linux and maybe MacOSX some units (like cwstring) call setlocale(LC_ALL, '') -// to set the language/country specific locale (e.g. charset) for this application. -// Unfortunately, LC_NUMERIC is set by this call too. -// It defines the decimal-separator and other country-specific numeric settings. -// This parameter is used by the C string-to-float parsing functions atof() and strtod(). -// After changing LC_NUMERIC some external C-based libs (like projectM) are not -// able to parse strings correctly -// (e.g. in Germany "0.9" is not recognized as a valid number anymore but "0,9" is). -// So we reset the numeric settings to the default ('C'). -// Note: The behaviour of Pascal parsing functions (e.g. strtofloat()) is not -// changed by this because it doesn't use the locale-settings. -// TODO: -// - Check if this is needed in MacOSX (at least the locale is set in cwstring) -// - Find out which libs are concerned by this problem. -// If only projectM is concerned by this problem set and restore the numeric locale -// for each call to projectM instead of changing it globally. -procedure SetDefaultNumericLocale(); -begin - {$ifdef LINUX} - PrevNumLocale := setlocale(LC_NUMERIC, nil); - setlocale(LC_NUMERIC, 'C'); - {$endif} -end; - -procedure RestoreNumericLocale(); -begin - {$ifdef LINUX} - setlocale(LC_NUMERIC, PChar(PrevNumLocale)); - {$endif} -end; - -(* - * If an invalid floating point operation was performed the Floating-point unit (FPU) - * generates a Floating-point exception (FPE). Dependending on the settings in - * the FPU's control-register (interrupt mask) the FPE is handled by the FPU itself - * (we will call this as "FPE disabled" later on) or is passed to the application - * (FPE enabled). - * If FPEs are enabled a floating-point division by zero (e.g. 10.0 / 0.0) is - * considered an error and an exception is thrown. Otherwise the FPU will handle - * the error and return the result infinity (INF) (10.0 / 0.0 = INF) without - * throwing an error to the application. - * The same applies to a division by INF that either raises an exception - * (FPE enabled) or returns 0.0 (FPE disabled). - * Normally (as with C-programs), Floating-point exceptions (FPE) are DISABLED - * on program startup (at least with Intel CPUs), but for some strange reasons - * they are ENABLED in pascal (both delphi and FPC) by default. - * Many libs operating with floating-point values rely heavily on the C-specific - * behaviour. So using them in delphi is a ticking time-bomb because sooner or - * later they will crash because of an FPE (this problem occurs massively - * in OpenGL-based libs like projectM). In contrast to this no error will occur - * if the lib is linked to a C-program. - * - * Further info on FPUs: - * For x86 and x86_64 CPUs we have to consider two FPU instruction sets. - * The math co-processor i387 (aka 8087 or x87) set introduced with the i386 - * and SSE (Streaming SIMD Extensions) introduced with the Pentium3. - * Both of them have separate control-registers (x87: FPUControlWord, SSE: MXCSR) - * to control FPEs. Either has (among others) 6bits to enable/disable several - * exception types (Invalid,Denormalized,Zero,Overflow,Underflow,Precision). - * Those exception-types must all be masked (=1) to get the default C behaviour. - * The control-registers can be set with the asm-ops FLDCW (x87) and LDMXCSR (SSE). - * Instead of using assembler code, we can use Set8087CW() provided by delphi and - * FPC to set the x87 control-word. FPC also provides SetSSECSR() for SSE's MXCSR. - * Note that both Delphi and FPC enable FPEs (e.g. for div-by-zero) on program - * startup but only FPC enables FPEs (especially div-by-zero) for SSE too. - * So we have to mask FPEs for x87 in Delphi and FPC and for SSE in FPC only. - * FPC and Delphi both provide a SetExceptionMask() for control of the FPE - * mask. SetExceptionMask() sets the masks for x87 in Delphi and for x87 and SSE - * in FPC (seems as if Delphi [2005] is not SSE aware). So SetExceptionMask() - * is what we need and it even is plattform and CPU independent. - * - * Pascal OpenGL headers (like the Delphi standard ones or JEDI-SDL headers) - * already call Set8087CW() to disable FPEs but due to some bugs in the JEDI-SDL - * headers they do not work properly with FPC. I already patched them, so they - * work at least until they are updated the next time. In addition Set8086CW() - * does not suffice to disable FPEs because the SSE FPEs are not disabled by this. - * FPEs with SSE are a big problem with some libs because many linux distributions - * optimize code for SSE or Pentium3 (for example: int(INF) which convert the - * double value "infinity" to an integer might be automatically optimized by - * using SSE's CVTSD2SI instruction). So SSE FPEs must be turned off in any case - * to make USDX portable. - * - * Summary: - * Call this function on initialization to make sure FPEs are turned off. - * It will solve a lot of errors with FPEs in external libs. - *) -procedure DisableFloatingPointExceptions(); -begin - (* - // We will use SetExceptionMask() instead of Set8087CW()/SetSSECSR(). - // Note: Leave these lines for documentation purposes just in case - // SetExceptionMask() does not work anymore (due to bugs in FPC etc.). - {$IF Defined(CPU386) or Defined(CPUI386) or Defined(CPUX86_64)} - Set8087CW($133F); - {$IFEND} - {$IF Defined(FPC)} - if (has_sse_support) then - SetSSECSR($1F80); - {$IFEND} - *) - - // disable all of the six FPEs (x87 and SSE) to be compatible with C/C++ and - // other libs which rely on the standard FPU behaviour (no div-by-zero FPE anymore). - SetExceptionMask([exInvalidOp, exDenormalized, exZeroDivide, - exOverflow, exUnderflow, exPrecision]); -end; - -function StringReplaceW(text : WideString; search, rep: WideChar) : WideString; -var - iPos : integer; -// sTemp : WideString; -begin -(* - result := text; - iPos := Pos(search, result); - while (iPos > 0) do - begin - sTemp := copy(result, iPos + length(search), length(result)); - result := copy(result, 1, iPos - 1) + rep + sTEmp; - iPos := Pos(search, result); - end; -*) - result := text; - - if search = rep then - exit; - - for iPos := 1 to length(result) do - begin - if result[iPos] = search then - result[iPos] := rep; - end; -end; - -function AdaptFilePaths( const aPath : widestring ): widestring; -begin - result := StringReplaceW( aPath, '\', PathDelim );//, [rfReplaceAll] ); -end; - - -{$IFNDEF MSWINDOWS} -procedure ZeroMemory( Destination: Pointer; Length: DWORD ); -begin - FillChar( Destination^, Length, 0 ); -end; - -function MakeLong(A, B: Word): Longint; -begin - Result := (LongInt(B) shl 16) + A; -end; - -(* -function QueryPerformanceCounter(lpPerformanceCount:TLARGEINTEGER):Bool; - - // From http://en.wikipedia.org/wiki/RDTSC - function RDTSC: Int64; register; - asm - rdtsc - end; - -begin - // Use clock_gettime(CLOCK_REALTIME, ...) here (but not from the libc unit) - lpPerformanceCount := RDTSC(); - result := true; -end; - -function QueryPerformanceFrequency(lpFrequency:TLARGEINTEGER):Bool; -begin - // clock_getres(CLOCK_REALTIME, ...) - lpFrequency := 0; - result := true; -end; -*) -{$ENDIF} - -// Checks if a regular files or directory with the given name exists. -// The comparison is case insensitive. -function FileExistsInsensitive(var FileName: string): boolean; -var - FilePath, LocalFileName: string; - SearchInfo: TSearchRec; -begin -{$IFDEF LINUX} // eddie: Changed FPC to LINUX: Windows and Mac OS X dont have case sensitive file systems - // speed up standard case - if FileExists(FileName) then - begin - Result := true; - exit; - end; - - Result := false; - - FilePath := ExtractFilePath(FileName); - if (FindFirst(FilePath+'*', faAnyFile, SearchInfo) = 0) then - begin - LocalFileName := ExtractFileName(FileName); - repeat - if (AnsiSameText(LocalFileName, SearchInfo.Name)) then - begin - FileName := FilePath + SearchInfo.Name; - Result := true; - break; - end; - until (FindNext(SearchInfo) <> 0); - end; - FindClose(SearchInfo); -{$ELSE} - Result := FileExists(FileName); -{$ENDIF} -end; - - -{$IFDEF Unix} - // include resource-file info (stored in the constant array "resources") - {$I ../resource.inc} -{$ENDIF} - -function GetResourceStream(const aName, aType: string): TStream; -{$IFDEF Unix} -var - ResIndex: integer; - Filename: string; -{$ENDIF} -begin - Result := nil; - - {$IFDEF Unix} - for ResIndex := 0 to High(resources) do - begin - if (resources[ResIndex][0] = aName ) and - (resources[ResIndex][1] = aType ) then - begin - try - Filename := ResourcesPath + resources[ResIndex][2]; - Result := TFileStream.Create(Filename, fmOpenRead); - except - Log.LogError('Failed to open: "'+ resources[ResIndex][2] +'"', 'GetResourceStream'); - end; - exit; - end; - end; - {$ELSE} - try - Result := TResourceStream.Create(HInstance, aName , PChar(aType)); - except - Log.LogError('Invalid resource: "'+ aType + ':' + aName +'"', 'GetResourceStream'); - end; - {$ENDIF} -end; - -// +++++++++++++++++++++ helpers for RWOpsFromStream() +++++++++++++++ - function SdlStreamSeek( context : PSDL_RWops; offset : Integer; whence : Integer ) : integer; cdecl; - var - stream : TStream; - origin : Word; - begin - stream := TStream( context.unknown ); - if ( stream = nil ) then - raise EInvalidContainer.Create( 'SDLStreamSeek on nil' ); - case whence of - 0 : origin := soFromBeginning; // Offset is from the beginning of the resource. Seek moves to the position Offset. Offset must be >= 0. - 1 : origin := soFromCurrent; // Offset is from the current position in the resource. Seek moves to Position + Offset. - 2 : origin := soFromEnd; - else - origin := soFromBeginning; // just in case - end; - Result := stream.Seek( offset, origin ); - end; - - function SdlStreamRead( context : PSDL_RWops; Ptr : Pointer; size : Integer; maxnum: Integer ) : Integer; cdecl; - var - stream : TStream; - begin - stream := TStream( context.unknown ); - if ( stream = nil ) then - raise EInvalidContainer.Create( 'SDLStreamRead on nil' ); - try - Result := stream.read( Ptr^, Size * maxnum ) div size; - except - Result := -1; - end; - end; - - function SDLStreamClose( context : PSDL_RWops ) : Integer; cdecl; - var - stream : TStream; - begin - stream := TStream( context.unknown ); - if ( stream = nil ) then - raise EInvalidContainer.Create( 'SDLStreamClose on nil' ); - stream.Free; - Result := 1; - end; -// ----------------------------------------------- - -(* - * Creates an SDL_RWops handle from a TStream. - * The stream and RWops must be freed by the user after usage. - * Use SDL_FreeRW(...) to free the RWops data-struct. - *) -function RWopsFromStream(Stream: TStream): PSDL_RWops; -begin - Result := SDL_AllocRW(); - if (Result = nil) then - Exit; - - // set RW-callbacks - with Result^ do - begin - unknown := TUnknown(Stream); - seek := SDLStreamSeek; - read := SDLStreamRead; - write := nil; - close := SDLStreamClose; - type_ := 2; - end; -end; - - - -{$IFDEF FPC} -function RandomRange(aMin: Integer; aMax: Integer) : Integer; -begin - RandomRange := Random(aMax-aMin) + aMin ; -end; -{$ENDIF} - - -{$IFDEF FPC} -var - MessageList: TStringList; - ConsoleHandler: TThreadID; - // Note: TRTLCriticalSection is defined in the units System and Libc, use System one - ConsoleCriticalSection: System.TRTLCriticalSection; - ConsoleEvent: PRTLEvent; - ConsoleQuit: boolean; -{$ENDIF} - -(* - * Write to console if one is available. - * It checks if a console is available before output so it will not - * crash on windows if none is available. - * Do not use this function directly because it is not thread-safe, - * use ConsoleWriteLn() instead. - *) -procedure _ConsoleWriteLn(const aString: string); {$IFDEF HasInline}inline;{$ENDIF} -begin - {$IFDEF MSWINDOWS} - // sanity check to avoid crashes with writeln() - if (IsConsole) then - begin - {$ENDIF} - Writeln(aString); - {$IFDEF MSWINDOWS} - end; - {$ENDIF} -end; - -{$IFDEF FPC} -{* - * The console-handlers main-function. - * TODO: create a quit-event on closing. - *} -function ConsoleHandlerFunc(param: pointer): PtrInt; -var - i: integer; - quit: boolean; -begin - quit := false; - while (not quit) do - begin - // wait for new output or quit-request - RTLeventWaitFor(ConsoleEvent); - - System.EnterCriticalSection(ConsoleCriticalSection); - // output pending messages - for i := 0 to MessageList.Count-1 do - begin - _ConsoleWriteLn(MessageList[i]); - end; - MessageList.Clear(); - - // use local quit-variable to avoid accessing - // ConsoleQuit outside of the critical section - if (ConsoleQuit) then - quit := true; - - RTLeventResetEvent(ConsoleEvent); - System.LeaveCriticalSection(ConsoleCriticalSection); - end; - result := 0; -end; -{$ENDIF} - -procedure InitConsoleOutput(); -begin - {$IFDEF FPC} - // init thread-safe output - MessageList := TStringList.Create(); - System.InitCriticalSection(ConsoleCriticalSection); - ConsoleEvent := RTLEventCreate(); - ConsoleQuit := false; - // must be a thread managed by FPC. Otherwise (e.g. SDL-thread) - // it will crash when using Writeln. - ConsoleHandler := BeginThread(@ConsoleHandlerFunc); - {$ENDIF} -end; - -procedure FinalizeConsoleOutput(); -begin - {$IFDEF FPC} - // terminate console-handler - System.EnterCriticalSection(ConsoleCriticalSection); - ConsoleQuit := true; - RTLeventSetEvent(ConsoleEvent); - System.LeaveCriticalSection(ConsoleCriticalSection); - WaitForThreadTerminate(ConsoleHandler, 0); - // free data - System.DoneCriticalsection(ConsoleCriticalSection); - RTLeventDestroy(ConsoleEvent); - MessageList.Free(); - {$ENDIF} -end; - -{* - * With FPC console output is not thread-safe. - * Using WriteLn() from external threads (like in SDL callbacks) - * will damage the heap and crash the program. - * Most probably FPC uses thread-local-data (TLS) to lock a mutex on - * the console-buffer. This does not work with external lib's threads - * because these do not have the TLS data and so it crashes while - * accessing unallocated memory. - * The solution is to create an FPC-managed thread which has the TLS data - * and use it to handle the console-output (hence it is called Console-Handler) - * It should be safe to do so, but maybe FPC requires the main-thread to access - * the console-buffer only. In this case output should be delegated to it. - * - * TODO: - check if it is safe if an FPC-managed thread different than the - * main-thread accesses the console-buffer in FPC. - * - check if Delphi's WriteLn is thread-safe. - * - check if we need to synchronize file-output too - *} -procedure ConsoleWriteLn(const msg: string); -begin -{$IFDEF CONSOLE} - {$IFDEF FPC} - // TODO: check for the main-thread and use a simple _ConsoleWriteLn() then? - //GetCurrentThreadThreadId(); - System.EnterCriticalSection(ConsoleCriticalSection); - MessageList.Add(msg); - RTLeventSetEvent(ConsoleEvent); - System.LeaveCriticalSection(ConsoleCriticalSection); - {$ELSE} - _ConsoleWriteLn(msg); - {$ENDIF} -{$ENDIF} -end; - -procedure ShowMessage(const msg: String; msgType: TMessageType); -{$IFDEF MSWINDOWS} -var Flags: Cardinal; -{$ENDIF} -begin -{$IF Defined(MSWINDOWS)} - case msgType of - mtInfo: Flags := MB_ICONINFORMATION or MB_OK; - mtError: Flags := MB_ICONERROR or MB_OK; - else Flags := MB_OK; - end; - MessageBox(0, PChar(msg), PChar(USDXVersionStr()), Flags); -{$ELSE} - ConsoleWriteln(msg); -{$IFEND} -end; - -function IsAlphaChar(ch: WideChar): boolean; -begin - // TODO: add chars > 255 when unicode-fonts work? - case ch of - 'A'..'Z', // A-Z - 'a'..'z', // a-z - #170,#181,#186, - #192..#214, - #216..#246, - #248..#255: - Result := true; - else - Result := false; - end; -end; - -function IsNumericChar(ch: WideChar): boolean; -begin - case ch of - '0'..'9': - Result := true; - else - Result := false; - end; -end; - -function IsAlphaNumericChar(ch: WideChar): boolean; -begin - Result := (IsAlphaChar(ch) or IsNumericChar(ch)); -end; - -function IsPunctuationChar(ch: WideChar): boolean; -begin - // TODO: add chars outside of Latin1 basic (0..127)? - case ch of - ' '..'/',':'..'@','['..'`','{'..'~': - Result := true; - else - Result := false; - end; -end; - -function IsControlChar(ch: WideChar): boolean; -begin - case ch of - #0..#31, - #127..#159: - Result := true; - else - Result := false; - end; -end; - -(* - * Recursive part of the MergeSort algorithm. - * OutList will be either InList or TempList and will be swapped in each - * depth-level of recursion. By doing this it we can directly merge into the - * output-list. If we only had In- and OutList parameters we had to merge into - * InList after the recursive calls and copy the data to the OutList afterwards. - *) -procedure _MergeSort(InList, TempList, OutList: TList; StartPos, BlockSize: integer; - CompareFunc: TListSortCompare); -var - LeftSize, RightSize: integer; // number of elements in left/right block - LeftEnd, RightEnd: integer; // Index after last element in left/right block - MidPos: integer; // index of first element in right block - Pos: integer; // position in output list -begin - LeftSize := BlockSize div 2; - RightSize := BlockSize - LeftSize; - MidPos := StartPos + LeftSize; - - // sort left and right halves of this block by recursive calls of this function - if (LeftSize >= 2) then - _MergeSort(InList, OutList, TempList, StartPos, LeftSize, CompareFunc) - else - TempList[StartPos] := InList[StartPos]; - if (RightSize >= 2) then - _MergeSort(InList, OutList, TempList, MidPos, RightSize, CompareFunc) - else - TempList[MidPos] := InList[MidPos]; - - // merge sorted left and right sub-lists into output-list - LeftEnd := MidPos; - RightEnd := StartPos + BlockSize; - Pos := StartPos; - while ((StartPos < LeftEnd) and (MidPos < RightEnd)) do - begin - if (CompareFunc(TempList[StartPos], TempList[MidPos]) <= 0) then - begin - OutList[Pos] := TempList[StartPos]; - Inc(StartPos); - end - else - begin - OutList[Pos] := TempList[MidPos]; - Inc(MidPos); - end; - Inc(Pos); - end; - - // copy remaining elements to output-list - while (StartPos < LeftEnd) do - begin - OutList[Pos] := TempList[StartPos]; - Inc(StartPos); - Inc(Pos); - end; - while (MidPos < RightEnd) do - begin - OutList[Pos] := TempList[MidPos]; - Inc(MidPos); - Inc(Pos); - end; -end; - -(* - * Stable alternative to the instable TList.Sort() (uses QuickSort) implementation. - * A stable sorting algorithm preserves preordered items. E.g. if sorting by - * songs by title first and artist afterwards, the songs of each artist will - * be ordered by title. In contrast to this an unstable algorithm (like QuickSort) - * may destroy an existing order, so the songs of an artist will not be ordered - * by title anymore after sorting by artist in the previous example. - * If you do not need a stable algorithm, use TList.Sort() instead. - *) -procedure MergeSort(List: TList; CompareFunc: TListSortCompare); -var - TempList: TList; -begin - TempList := TList.Create(); - TempList.Count := List.Count; - if (List.Count >= 2) then - _MergeSort(List, TempList, List, 0, List.Count, CompareFunc); - TempList.Free; -end; - - -type - // stores the unaligned pointer of data allocated by GetAlignedMem() - PMemAlignHeader = ^TMemAlignHeader; - TMemAlignHeader = Pointer; - -(** - * Use this function to assure that allocated memory is aligned on a specific - * byte boundary. - * Alignment must be a power of 2. - * - * Important: Memory allocated with GetAlignedMem() MUST be freed with - * FreeAlignedMem(), FreeMem() will cause a segmentation fault. - * - * Hint: If you do not need dynamic memory, consider to allocate memory - * statically and use the {$ALIGN x} compiler directive. Note that delphi - * supports an alignment "x" of up to 8 bytes only whereas FPC supports - * alignments on 16 and 32 byte boundaries too. - *) -{$WARNINGS OFF} -function GetAlignedMem(Size: cardinal; Alignment: integer): Pointer; -var - OrigPtr: Pointer; -const - MIN_ALIGNMENT = 16; -begin - // Delphi and FPC (tested with 2.2.0) align memory blocks allocated with - // GetMem() at least on 8 byte boundaries. Delphi uses a minimal alignment - // of either 8 or 16 bytes depending on the size of the requested block - // (see System.GetMinimumBlockAlignment). As we do not want to change the - // boundary for the worse, we align at least on MIN_ALIGN. - if (Alignment < MIN_ALIGNMENT) then - Alignment := MIN_ALIGNMENT; - - // allocate unaligned memory - GetMem(OrigPtr, SizeOf(TMemAlignHeader) + Size + Alignment); - if (OrigPtr = nil) then - begin - Result := nil; - Exit; - end; - - // reserve space for the header - Result := Pointer(PtrUInt(OrigPtr) + SizeOf(TMemAlignHeader)); - // align memory - Result := Pointer(PtrUInt(Result) + Alignment - PtrUInt(Result) mod Alignment); - - // set header with info on old pointer for FreeMem - PMemAlignHeader(PtrUInt(Result) - SizeOf(TMemAlignHeader))^ := OrigPtr; -end; -{$WARNINGS ON} - -{$WARNINGS OFF} -procedure FreeAlignedMem(P: Pointer); -begin - if (P <> nil) then - FreeMem(PMemAlignHeader(PtrUInt(P) - SizeOf(TMemAlignHeader))^); -end; -{$WARNINGS ON} - - -initialization - InitConsoleOutput(); - -finalization - FinalizeConsoleOutput(); - -end. |